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CBSE Grading System for Class X

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NCHMCT JEE

JEE for 3-year BSc Program in Hospitality & Hotel Administration

  • Total No. of seats: 5700 (approx.)
  • Session: 2010-2011
  • Exam Date: 8th May 2010
  • Last Date for receipt of completed Application Form : 29th March, 2010
  • Result of NCHMCT JEE 2010: 1st/2nd week of June 2010
  • Centralized Counselling at New Delhi : 3rd week of June 2010
  • Commencement of Academic Session : Last Week July, 2010
  • Download Application Form: Click here
Go to for NCHMCT JEE more info

CBSE 2009 2010

The solutions for the AIEEE 2009 Exam are not out yet.

The All India Engineering Entrance Examination (AIEEE) will held all across the country on the 23th April 2009.

The pattern of  AIEEE 2009 exam will be same as of AIEEE 2008.

Get the solutions to AIEEE 2009 from all the leading coaching institutes right here on this website on 26rd April midnight.You can discuss about the AIEEE 2009 Paper using the comment form below after registering.

http://www.icbse.com/2009/66/aieee-solutions-answer-keys-2009.html

CBSE Board Results 2009

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The CBSE 2009 Board results are not out yet.

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CBSE Board Results 2009 Class X and Class XII

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BITSAT Online Test Syllabus

BITSAT Online Test Syllabus

BITSAT 2009 Mathematics Syllabus

1. Algebra

1. Complex numbers, addition, multiplication, conjugation, polar representation, properties of modulus and principal argument, triangle inequality, roots of complex numbers, geometric interpretations.

2. Theory of Quadratic equations, quadratic equations in real and complex number system and their solutions, relation between roots and coefficients, nature of roots, equations reducible to quadratic equations.

3.  Logarithms and their properties.

4. Arithmetic, geometric and harmonic progressions, arithmetic, geometric and harmonic means, arithmetico-geometric series, sums of finite arithmetic and geometric progressions, infinite geometric series, sums of squares and cubes of the first n natural numbers.

5.  Exponential series.

6. Permutations and combinations, Permutations as an arrangement and combination as selection, simple applications.

7. Binomial theorem for a positive integral index, properties of binomial coefficients.

8.Matrices and determinants of order two or three, properties and evaluation of determinants, addition and multiplication of matrices, adjoint and inverse of matrices, Solutions of simultaneous linear equations in two or three variables.

9. Sets, Relations and Functions, algebra of sets applications, equivalence relations, mappings, one-one, into and onto mappings, composition of mappings.

10. Mathematical Induction

11.  Linear Inequalities, solution of linear inequalities in one and two variables.

2. Trigonometry

1. Trigonometric ratios, functions and identities.

2. Solution of trigonometric equations.

3. Properties of triangles and solutions of triangles

4. Inverse trigonometric functions

5. Heights and distances

3. Two-dimensional Coordinate Geometry

1. Cartesian coordinates, distance between two points, section formulae, shift of origin.

2. Straight lines and pair of straight lines: Equation of straight lines in various forms, angle between two lines, distance of a point from a line, lines through the point of intersection of two given lines, equation of the bisector of the angle between two lines, concurrent lines.

3. Circles and family of circles : Equation of circle in various form, equation of tangent, normal & chords, parametric equations of a circle , intersection of a circle with a straight line or a circle, equation of circle through point of intersection of two circles, conditions for two intersecting circles to be orthogonal.

4.  Conic sections: parabola, ellipse and hyperbola their eccentricity, directrices & foci, parametric forms, equations of tangent & normal, conditions for y=mx+c to be a tangent and point of tangency.

4. Three dimensional Coordinate Geometry

1. Direction cosines and direction ratios, equation of a straight line in space and skew lines.

2. Angle between two lines whose direction ratios are given

3. Equation of a plane, distance of a point from a plane, condition for coplanarity of three lines.

5. Differential calculus

1. Domain and range of a real valued function, Limits and Continuity of the sum, difference, product and quotient of two functions, Differentiability.

2. Derivative of different types of functions (polynomial, rational, trigonometric, inverse trigonometric, exponential, logarithmic, implicit functions), derivative of the sum, difference, product and quotient of two functions, chain rule.

3. Geometric interpretation of derivative, Tangents and Normals.

4. Increasing and decreasing functions, Maxima and minima of a function.

5. Rolle’s Theorem, Mean Value Theorem and Intermediate Value Theorem.

6. Integral calculus

1. Integration as the inverse process of differentiation, indefinite integrals of standard functions.

2. Methods of integration: Integration by substitution, Integration by parts, integration by partial fractions, and integration by trigonometric identities.

3. Definite integrals and their properties, Fundamental Theorem of Integral Calculus and its applications.

4. Application of definite integrals to the determination of areas of regions bounded by simple curves.

7. Ordinary Differential Equations

1. Variables separable method.

2. Solution of homogeneous differential equations.

3. Linear first order differential equations

8. Probability

1. Addition and multiplication rules of probability.

2. Conditional probability

3. Independent events

4. Discrete random variables and distributions

9. Vectors

1. Addition of vectors, scalar multiplication.

2. Dot and cross products of two vectors.

3. Scalar triple products and their geometrical interpretations.

10. Statistics

1. Measures of dispersion

2. Measures of skewness and Central Tendency

11. Linear Programming

1. Formulation of linear Programming

2. Solution of linear Programming, using graphical method.

BITSAT 2009 Physics Syllabus

1. Units & Measurement

1. Units (Different systems of units, SI units, fundamental and derived units)

2. Dimensional Analysis

3. Precision and significant figures

4. Fundamental measurements in Physics (Vernier calipers, screw gauge, Physical balance etc)

2. Kinematics

1. Properties of vectors

2. Position, velocity and acceleration vectors

3. Motion with constant acceleration

4. Projectile motion

5. Uniform circular motion

6. Relative motion

3. Newton’s Laws of Motion

1. Newton’s laws (free body diagram, resolution of forces)

2. Motion on an inclined plane

3. Motion of blocks with pulley systems

4. Circular motion - centripetal force

5. Inertial and non-inertial frames

4. Impulse and Momentum

1. Definition of impulse and momentum

2. Conservation of momentum

3. Collisions

4. Momentum of a system of particles

5. Center of mass

5. Work and Energy

1. Work done by a force

2. Kinetic energy and work-energy theorem

3. Power

4. Conservative forces and potential energy

5. Conservation of mechanical energy

6. Rotational Motion

1. Description of rotation (angular displacement, angular velocity and angular acceleration)

2. Rotational motion with constant angular acceleration

3. Moment of inertia, Parallel and perpendicular axes theorems, rotational kinetic energy6.4 Torque and angular momentum

4. Conservation of angular momentum

5.  Rolling motion

7. Gravitation

1. Newton’s law of gravitation

2. Gravitational potential energy, Escape velocity

3.  Motion of planets - Kepler’s laws, satellite motion

8. Mechanics of Solids and Fluids

1. Elasticity

2. Pressure, density and Archimedes’ principle

3. Viscosity and Surface Tension

4. Bernoulli’s theorem

9. Oscillations

1. Kinematics of simple harmonic motion

2. Spring mass system, simple and compound pendulum

3. Forced & damped oscillations, resonance

10. Waves

1. Progressive sinusoidal waves

2. Standing waves in strings and pipes

3. Superposition of waves beats

11. Heat and Thermodynamics

1. Kinetic theory of gases

2. Thermal equilibrium and temperature

3. Specific heat

4. Work, heat and first law of thermodynamics

5. 2nd law of thermodynamics, Carnot engine - Efficiency and Coefficient of performance

12. Electrostatics

1. Coulomb’s law

2.  Electric field (discrete and continuous charge distributions)

3.  Electrostatic potential and Electrostatic potential energy

4.  Gauss’ law and its applications

5. Electric dipole

6. Capacitance and dielectrics (parallel plate capacitor, capacitors in series and parallel)

13. Current Electricity

1. Ohm’s law, Joule heating

2. D.C circuits - Resistors and cells in series and parallel, Kirchoff’s laws, potentiometer and Wheatstone bridge,

3. Electrical Resistance (Resistivity, origin and temperature dependence of resistivity).

14. Magnetic Effect of Current

1. Biot-Savart’s law and its applications

2. Ampere’s law and its applications

3. Lorentz force, force on current carrying conductors in a magnetic field

4. Magnetic moment of a current loop, torque on a current loop, Galvanometer and its conversion to voltmeter and ammeter

15. Electromagnetic Induction

1. Faraday’s law, Lenz’s law, eddy currents

2. Self and mutual inductance

3. Transformers and generators

4. Alternating current (peak and rms value)

5. AC circuits, LCR circuits

16. Optics

1. Laws of reflection and refraction

2. Lenses and mirrors

3. Optical instruments - telescope and microscope

4.  Interference - Huygen’s principle, Young’s double slit experiment

5.  Interference in thin films

6.  Diffraction due to a single slit

7.  Electromagnetic waves and their characteristics (only qualitative ideas), Electromagnetic spectrum

8. Polarization - states of polarization, Malus’ law, Brewster’s law

17. Modern Physics

1. Dual nature of light and matter - Photoelectric effect. De Broglie wavelength

2. Atomic models - Rutherford’s experiment, Bohr’s atomic model

3.  Hydrogen atom spectrum

4. Radioactivity

5. Nuclear reactions: Fission and fusion, binding energy

BITSAT 2009 Chemistry Syllabus

1. States of Matter

1. Measurement: Physical quantities and SI units, Dimensional analysis, Precision, Significant figures.

2. Chemical reactions: Laws of chemical combination, Dalton’s atomic theory; Mole concept; Atomic, molecular and molar masses; Percentage composition & molecular formula; Balanced chemical equations & stoichiometry

3. Gaseous state: Kinetic theory - Maxwell distribution of velocities, Average, root mean square and most probable velocities and relation to temperature, Diffusion; Deviation from ideal behaviour - Critical temperature, Liquefaction of gases, van der Waals equation.

4. Liquid state: Vapour pressure, surface tension, viscosity.

5. Solid state: Classification; Space lattices & crystal systems; Unit cell - Cubic & hexagonal systems; Close packing; Crystal structures: Simple AB and AB2 type ionic crystals, covalent crystals - diamond & graphite, metals. Imperfections- Point defects, non-stoichiometric crystals; Electrical, magnetic and dielectric properties; Amorphous solids - qualitative description.

2. Atomic Structure

1. Introduction: Subatomic particles; Rutherford’s picture of atom; Hydrogen atom spectrum and Bohr model.

2. Quantum mechanics: Wave-particle duality - de Broglie relation, Uncertainty principle; Hydrogen atom: Quantum numbers and wavefunctions, atomic orbitals and their shapes (s, p, and d), Spin quantum number.

3. Many electron atoms: Pauli exclusion principle; Aufbau principle and the electronic configuration of atoms, Hund’s rule.

4. Periodicity: Periodic law and the modern periodic table; Types of elements: s, p, d, and f blocks; Periodic trends: ionization energy, atomic and ionic radii, electron affinity, and valency.

5. Nucleus: Natural and artificial radioactivity; Nuclear reactions, Artificial transmutation ofelements.

3. Chemical Bonding & Molecular Structure

1. Ionic Bond: Lattice Energy and Born-Haber cycle

2. Molecular Structure: Lewis picture & resonance structures, VSEPR model & molecular shapes

3. Covalent Bond: Valence Bond Theory- Orbital overlap, Directionality of bonds & hybridistaion (s & p orbitals only), Resonance; Molecular orbital theory- Methodology, Orbital energy level diagram, Bond order, Magnetic properties for homonuclear diatomic species.

4. Metallic Bond: Qualitative description.

5. Intermolecular Forces: Polarity; Dipole moments; Hydrogen Bond.

4. Thermodynamics

1. Basic Concepts: Systems and surroundings; State functions; Intensive & Extensive Properties; Zeroth Law and Temperature

2. First Law of Thermodynamics: Work, internal energy, heat, enthalpy, heat capacities; Enthalpies of formation, phase transformation, ionization, electron gain; Thermochemistry; Hess’s Law.

3. Second and Third Laws: Spontaneous and reversible processes; entropy; Gibbs free energy related to spontaneity and non-mechanical work; Standard free energies of formation, free energy change and chemical equilibrium; Third Law and Absolute Entropies.

5. Physical and Chemical Equilibria

1. Concentration Units: Mole Fraction, Molarity, and Molality

2. Solutions: Solubility of solids and gases in liquids, Vapour Pressure, Raoult’s law, Relative lowering of vapour pressure, depression in freezing point; elevation in boiling point; osmotic pressure, determination of molecular mass.

3. Physical Equilibrium: Equilibria involving physical changes (solid-liquid, liquid-gas, solid-gas), Adsorption, Physical and Chemical adsorption, Langmuir Isotherm.

4. Chemical Equilibria: Equilibrium constants (KP, KC), Le-Chatelier’s principle.

5.  Ionic Equilibria: Strong and Weak electrolytes, Acids and Bases (Arrhenius, Lewis, Lowry and Bronsted) and their dissociation; Ionization of Water; pH; Buffer solutions; Acid-base titrations; Hydrolysis; Solubility Product of Sparingly Soluble Salts; Common Ion Effect.

6. Factors Affecting Equilibria: Concentration, Temperature, Pressure, Catalysts, Significance of DG and DG0 in Chemical Equilibria.

6. Electrochemistry

1. Redox Reactions: Oxidation-reduction reactions (electron transfer concept); Oxidation number; Balancing of redox reactions; Electrochemical cells and cell reactions; Electrode potentials; EMF of Galvanic cells; Nernst equation; Gibbs energy change and cell potential; Concentration cells; Secondary cells; Fuel cells; Corrosion and its prevention.

2.  Electrolytic Conduction: Electrolytic Conductance; Specific, equivalent and molar conductivities; Kolhrausch’s Law and its application, Faraday’s laws of electrolysis; Electrode potential and electrolysis, Commercial production of the chemicals, NaOH, Na, Al, C12, & F2

7. Chemical Kinetics

1. Aspects of Kinetics: Rate and Rate expression of a reaction; Rate constant; Order of reaction; Integrated rate expressions for zero and first order reactions; Half-life; Determination of rate constant and order of reaction

2. Factor Affecting the Rate of the Reactions: Temperature dependence of rate constant; Activation energy; Catalysis, Surface catalysis, enzymes, zeolites; Factors affecting rate of collisions between molecules; Effect of light.

3. Mechanism of Reaction: Elementary reactions; Complex reactions; Reactions involving two/three steps only; Photochemical reactions; Concept of fast reactions.

4. Radioactive isotopes: Half-life period; Radiochemical dating.

8. Hydrogen and s-block elements

1. Hydrogen: Element: unique position in periodic table, occurrence, isotopes; Dihydrogen: preparation, properties, reactions, and uses; Molecular, saline, interstitial hydrides; Water: Properties; Structure and aggregation of water molecules; Hard and soft water; Heavy water; Hydrogen peroxide.

2. s-block elements: Abundance and occurrence; Anomalous properties of the first elements in each group; diagonal relationships.

3. Alkali metals: Lithium, sodium and potassium: occurrence, extraction, reactivity, and electrode potentials; Reactions with oxygen, hydrogen, halogens and liquid ammonia; Basic nature of oxides and hydroxides; Halides; Properties and uses of compounds such as NaCl, Na2CO3, NaHCO3, NaOH, KCl, and KOH.

4. Alkaline earth metals: Magnesium and calcium: Occurrence, extraction, reactivity and electrode potentials; Reactions with non-metals; Solubility and thermal stability of oxo salts; Properties and uses of important compounds such as CaO, Ca(OH)2, plaster of Paris, MgSO4, MgCl2, CaCO3, and CaSO4; Lime and limestone, cement.

9. p- d- and f-block elements

1. General: Abundance, distribution, physical and chemical properties, isolation and uses of elements; Trends in chemical reactivity of elements of a group; Extraction and refining of metals.

2. Group 13 elements: Boron; Properties and uses of borax, boric acid, boron hydrides & halides. Reaction of aluminum with acids and alkalis;

3. Group 14 elements: Carbon: Uses, Allotropes (graphite, diamond, fullerenes), oxides, halides and sulphides, carbides; Silicon: Silica, silicates, silicones; Tin and lead: Extraction, halides and oxides.

4. Group 15 elements: Dinitrogen; Reactivity and uses of nitrogen and its compounds; Industrial and biological nitrogen fixation; Ammonia: Haber’s process, properties and reactions; Oxides of nitrogen and their structures; Ostwald’s process of nitric acid production; Fertilizers - NPK type; Production of phosphorus; Allotropes of phosphorus; Preparation, structure and properties of hydrides, oxides, oxoacids and halides of phosphorus.

5. Group 16 elements: Isolation and chemical reactivity of dioxygen; Acidic, basic and amphoteric oxides; Preparation, structure and properties of ozone; Allotropes of sulphur; Production of sulphur and sulphuric acid; Structure and properties of oxides, oxoacids, hydrides and halides of sulphur.

6. Group 17 and group 18 elements: Structure and properties of hydrides, oxides, oxoacids of chlorine; Inter halogen compounds; Bleaching Powder; Preparation, structure and reactions of xenon fluorides, oxides, and oxoacids.

7. d-block elements: General trends in the chemistry of first row transition elements; Metallic character; Oxidation state; Ionic radii; Catalytic properties; Magnetic properties; Interstitial compounds; Occurrence and extraction of iron, copper, silver, zinc, and mercury; Alloy formation; Steel and some important alloys; preparation and properties of CuSO4, K2Cr2O7, KMnO4, Mercury halides; Silver nitrate and silver halides; Photography.

8. f-block elements: Lanthanides and actinides; Oxidation states and chemical reactivity of lanthanide compounds; Lanthanide contraction; Comparison of actinides and lanthanides.

9. Coordination Compounds: Coordination number; Ligands; Werner’s coordination theory; IUPAC nomenclature; Application and importance of coordination compounds (in qualitative analysis, extraction of metals and biological systems e.g. chlorophyll, vitamin B12, and hemoglobin); Bonding: Valence-bond approach, Crystal field theory (qualitative); Stability constants; Shapes, color and magnetic properties; Isomerism including stereoisomerisms; Organometallic compounds.

10. Principles of Organic Chemistry and Hydrocarbons

1. Classification:  Based on functional groups, trivial and IUPAC nomenclature.

2 Electronic displacement in a covalent bond:  Inductive, resonance effects, and hyperconjugation; free radicals; carbocations, carbanion, nucleophile and electrophile; types of reactions.

3. Alkanes and cycloalkanes:  Structural isomerism and general properties.

4. Alkenes and alkynes: General methods of preparation and reactions, physical properties, electrophilic and free radical additions, acidic character of alkynes and (1,2 and 1,4) addition to dienes.

5. Aromatic hydrocarbons: Sources; Properties; Isomerism; Resonance delocalization; polynuclear hydrocarbons; mechanism of electrophilic substitution reaction, directive influence and effect of substituents on reactivity.

6. Haloalkanes and haloarenes: Physical properties, chemical reactions.

7. Petroleum: Composition and refining, uses of petrochemicals.

11. Stereochemistry

1. Introduction: Chiral molecules; Optical activity; Polarimetry; R,S and D,L configurations; Fischer projections; Enantiomerism; Racemates; Diastereomerism and meso structures.

2. Conformations: Ethane, propane, n-butane and cyclohexane conformations; Newman and sawhorse projections.

3. Geometrical isomerism in alkenes

12. Organic Compounds with Functional Groups Containing Oxygen and Nitrogen

1. General: Electronic structure, important methods of preparation, important reactions and physical properties of alcohols, phenols, ethers, aldehydes, ketones, carboxylic acids, nitro compounds, amines, diazonium salts, cyanides and isocyanides.

2. Specific: Effect of substituents on alpha-carbon on acid strength, comparative reactivity of acid derivatives, basic character of amines and their separation, importance of diazonium salts in synthetic organic chemistry

13. Biological, Industrial and Environmental chemistry

1. The Cell: Concept of cell and energy cycle.

2. Carbohydrates: Classification; Monosaccharides; Structures of pentoses and hexoses; Anomeric carbon; Mutarotation; Simple chemical reactions of glucose, Disaccharides: reducing and non-reducing sugars – sucrose, maltose and lactose; Polysaccharides: elementary idea of structures of starch and cellulose.

3. Proteins: Amino acids; Peptide bond; Polypeptides; Primary structure of proteins; Simple idea of secondary , tertiary and quarternary structures of proteins; Denaturation of proteins and enzymes.

4. Nucleic Acids: Types of nucleic acids; Primary building blocks of nucleic acids (chemical composition of DNA & RNA); Primary structure of DNA and its double helix; Replication; Transcription and protein synthesis; Genetic code.

5. Lipids, Hormones, Vitamins: Classification, structure, functions in biosystems.

6. Polymers: Classification of polymers; General methods of polymerization; Molecular mass of polymers; Biopolymers and biodegradable polymers; Free radical, cationic and anionic addition polymerizations; Copolymerization: Natural rubber; Vulcanization of rubber; Synthetic rubbers. Condensation polymers.

7. Pollution:  Environmental pollutants; soil, water and air pollution; Chemical reactions in atmosphere; Smog; Major atmospheric pollutants; Acid rain; Ozone and its reactions; Depletion of ozone layer and its effects; Industrial air pollution; Green house effect and global warming; Green Chemistry.

8. Chemicals in medicine, health-care and food: Analgesics, Tranquilizers, antiseptics, disinfectants, anti-microbials, anti-fertility drugs, antihistamines, antibiotics, antacids; Cosmetics: Creams, perfumes, talcum powder, deodorants; Preservatives, artificial sweetening agents, antioxidants, and edible colours.

9. Other Industrial Chemicals: Dyes: Classification with examples – Indigo, methyl orange, aniline yellow, alizarin, malachite green; Advanced materials: Carbon fibers, ceramics, micro alloys; Detergents; Insect repellents, pheromones, sex attractants;  Rocket Propellants.

14. Theoretical Principles of Experimental Chemistry

1. Volumetric Analysis: Principles; Standard solutions of sodium carbonate and oxalic acid; Acid-base titrations; Redox reactions involving KI, H2SO4, Na2SO3, Na2S2O3and H2S; Potassium permanganate in acidic, basic and neutral media; Titrations of oxalic acid, ferrous ammonium sulphate with KMnO4, K2 Cr2O7/Na2S2O3, Cu(II)/Na2S2O3

2. Qualitative analysis of Inorganic Salts: Principles in the determination of the cations Pb2+, Cu2+, As3+, Mn2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+, Fe3+, Ni2+ and the anions CO32-, S2-, SO42-, SO32-, NO2-, NO3-, Cl-, Br-, I-, PO43-, CH3COO-, C2O42-.
3. Physical Chemistry Experiments: crystallization of alum, copper sulphate, ferrous sulphate, double salt of alum and ferrous sulphate, potassium ferric sulphate; Temperature vs. solubility; pH measurements; Lyophilic and lyophobic sols; Dialysis; Role of emulsifying agents in emulsification.  Equilibrium studies involving  (i) ferric and thiocyanate ions (ii) [Co(H2O)6]2+ and chloride ions; Enthalpy determination for (i) strong acid vs. strong base neutralization reaction (ii) hydrogen bonding interaction between acetone and chloroform; Rates of the reaction between (i) sodium thiosulphate and hydrochloric acid, (ii) potassium iodate and sodium sulphite (iii) iodide vs. hydrogen peroxide,  concentration and temperature effects in these reactions;

4. Purification Methods: Filtration, crystallization, sublimation, distillation, differential extraction, and chromatography. Principles of melting point and boiling point determination; principles of paper chromatographic separation – Rf  values.

5. Qualitative Analysis of Organic Compounds: Detection of nitrogen, sulphur, phosphorous and halogens; Detection of carbohydrates, fats and proteins in foodstuff; Detection of alcoholic, phenolic, aldehydic, ketonic, carboxylic, amino groups and unsaturation.

6. Quantitative Analysis of Organic Compounds: Basic principles for the quantitative estimation of carbon, hydrogen, nitrogen, halogen, sulphur and phosphorous; Molecular mass determination by silver salt and chloroplatinate salt methods; Elementary idea of mass spectrometer for accurate molecular mass determination; Calculations of empirical and molecular formulae.

7. Principles of Organic Chemistry Experiments:  Preparation of iodoform, acetanilide, p-nitro acetanilide, di-benzyl acetone, aniline yellow, beta-naphthol; Preparation of acetylene and study of its acidic character.

BITSAT 2009 Biology Syllabus

1. Diversity in Living World

1. Biology - its meaning and relevance to mankind

2. What is living; Taxonomic categories and aids; Systematics and Binomial system of nomenclature.

3. Introductory classification of living organisms (Two-kingdom system, Five-kingdom system);

4. Plant kingdom - Salient features of major groups (Algae to Angiosperms);

5. Animal kingdom - Salient features of Nonchordates up to phylum, and Chordates up to class level.

2. Cell: The Unit of Life; Structure and Function

1.  Cell wall; Cell membrane; Endomembrane system (ER, Golgi apparatus/Dictyosome, Lysosomes, Vacuoles); Mitochondria; Plastids; Ribosomes; Cytoskeleton; Cilia and Flagella; Centrosome and Centriole; Nucleus; Microbodies.

2.  Structural differences between prokaryotic and eukaryotic, and between plant and animal cells.

3. Cell cycle (various phases); Mitosis; Meiosis.

4.  Biomolecules - Structure and function of Carbohydrates, Proteins, Lipids, and Nucleic acids.

5. Enzymes - Chemical nature, types, properties and mechanism of action.

3. Genetics and Evolution

1.  Mendelian inheritance; Chromosome theory of inheritance; Gene interaction; Incomplete dominance; Co-dominance; Complementary genes; Multiple alleles;

2. Linkage and Crossing over; Inheritance patterns of hemophilia and blood groups in humans.

3.  DNA -its organization and replication; Transcription and Translation;

4.  Gene expression and regulation; DNA fingerprinting.

5. Theories and evidences of evolution, including modern Darwinism.

4. Structure and Function - Plants

1.  Morphology of a flowering plant; Tissues and tissue systems in plants; Anatomy and function of root, stem (including modifications), leaf, inflorescence, flower (including position and arrangement of different whorls, placentation), fruit and seed; Types of fruit; Secondary growth;

2. Absorption and movement of water (including diffusion, osmosis and water relations of cell) and of nutrients; Translocation of food; Transpiration and gaseous exchange; Mechanism of stomatal movement.

3. Mineral nutrition - Macro- and micro-nutrients in plants including deficiency disorders; Biological nitrogen fixation mechanism.

4. Photosynthesis - Light reaction, cyclic and non-cyclic photophosphorylation; various pathways of carbon dioxide fixation; Photorespiration; Limiting factors.

5. Respiration - Anaerobic, Fermentation, Aerobic; Glycolysis, TCA cycle; Electron transport system; Energy relations.

5. Structure and Function - Animals

1. Human Physiology - Digestive system - organs, digestion and absorption; Respiratory system - organs, breathing and exchange and transport of gases.

2. Body fluids and circulation - Blood, lymph, double circulation, regulation of cardiac activity; Hypertension, Coronary artery diseases.

3. Excretion system - Urine formation, regulation of kidney function

4. Locomotion and movement - Skeletal system, joints, muscles, types of movement.

5. Control and co-ordination - Central and peripheral nervous systems, structure and function of neuron, reflex action and sensory reception; Role of various types of endocrine glands; Mechanism of hormone action.

6. Reproduction, Growth and Movement in Plants

1. Asexual methods of reproduction;

2. Sexual Reproduction - Development of male and female gametophytes; Pollination (Types and agents); Fertilization; Development of embryo, endosperm, seed and fruit (including parthenocarpy and elminth).

3. Growth and Movement - Growth phases; Types of growth regulators and their role in seed dormancy, germination and movement;

4. Apical dominance; Senescence; Abscission; Photo- periodism; Vernalisation;

5. Various types of movements.

7. Reproduction and Development in Humans

1. Male and female reproductive systems;

2. Menstrual cycle; Gamete production; Fertilisation; Implantation;

3. Embryo development;

4. Pregnancy and parturition;

5. Birth control and contraception.

8. Ecology and Environment

1. Meaning of ecology, environment, habitat and niche.

2. Ecological levels of organization (organism to biosphere); Characteristics of Species, Population, Biotic Community and Ecosystem; Succession and Climax. Ecosystem - Biotic and abiotic components; Ecological pyramids; Food chain and Food web;

3. Energy flow; Major types of ecosystems including agroecosystem.

4. Ecological adaptations - Structural and physiological features in plants and animals of aquatic and desert habitats.

5. Biodiversity and Environmental Issues - Meaning, types and conservation strategies (Biosphere reserves, National parks and Sanctuaries), Air and Water Pollution (sources and major pollutants); Global warming and Climate change; Ozone depletion; Noise pollution; Radioactive pollution; Methods of pollution control (including an idea of bioremediation); Deforestation; Extinction of species (Hot Spots).

9. Biology and Human Welfare

1. Animal husbandry - Livestock, Poultry, Fisheries; Major animal diseases and their control. Pathogens of major communicable diseases of humans caused by fungi, bacteria, viruses, protozoans and elminthes, and their control.

2.  Cancer; AIDS.

3. Adolescence and drug/alcohol abuse;

4. Basic concepts of immunology.

5. Plant Breeding and Tissue Culture in crop improvement.

10. Biotechnology and its Applications

1. Microbes as ideal system for biotechnology;

2. Microbial technology in food processing, industrial production (alcohol, acids, enzymes, antibiotics), sewage treatment and energy generation.

3. Steps in recombinant DNA technology - restriction enzymes, NA insertion by vectors and other methods, regeneration of recombinants

4. Applications of R-DNA technology in human health -Production of Insulin, Vaccines and Growth hormones, Organ transplant, Gene therapy.

5. Applications in Industry and Agriculture - Production of expensive enzymes, strain improvement to scale up bioprocesses, GM crops by transfer of genes for nitrogen fixation, herbicide-resistance and pest-resistance including Bt crops.

English Proficiency and Logical Reasoning

English Proficiency

This test is designed to assess the test takers’ general proficiency in the use of English language as a means of self-expression in real life situations and specifically to test the test takers’ knowledge of basic grammar, their vocabulary, their ability to read fast and comprehend, and also their ability to apply the elements of effective  writing.

1. Grammar

1. Agreement, Time and Tense, Parallel construction, Relative pronouns

2. Determiners, Prepositions, Modals, Adjectives

3. Voice, Transformation

4. Question tags, Phrasal verbs

2. Vocabulary

1. Synonyms, Antonyms, Odd Word, One Word, Jumbled letters,

Homophones, Spelling

2. Contextual meaning.

3. Analogy

3. Reading Comprehension

1. Content/ideas

2. Vocabulary

3. Referents

4. Idioms/Phrases

5. Reconstruction (rewording)

4. Composition

1. Rearrangement

2. Paragraph Unity

3. Linkers/Connectives

Logical Reasoning

The test is given to the candidates to judge their power of reasoning spread in verbal and nonverbal areas. The candidates should be able to think logically so that they perceive the data accurately, understand the relationships correctly, figure out the missing numbers or words, and to apply rules to new and different contexts. These indicators are measured through performance on such tasks as detecting missing links, following directions, classifying words, establishing sequences, and completing analogies.

Verbal Reasoning

1. Analogy

Analogy means correspondence. In the questions based on analogy, a particular relationship is given and another similar relationship has to be identified from the alternatives provided.

2. Classification

Classification means to assort the items of a given group on the basis of certain common quality they possess and then spot the odd option out.

3. Series Completion

Here series of numbers or letters are given and one is asked to either complete the series or find out the wrong part in the series.

4. Logical Deduction – Reading Passage

Here a brief passage is given and based on the passage the candidate is required to identify the correct or incorrect logical conclusions.

5. Chart Logic

Here a chart or a table is given that is partially filled in and asks to complete it in accordance with the information given either in the chart / table or in the question.

6. Nonverbal Reasoning

1. Pattern Perception

Here a certain pattern is given and generally a quarter is left blank. The candidate is required to identify the correct quarter from the given four alternatives.

2. Figure Formation and Analysis

The candidate is required to analyze and form a figure from various given parts.

3. Paper Cutting

It involves the analysis of a pattern that is formed when a folded piece of paper is cut into a definite design.

4. Figure Matrix

In this more than one set of figures is given in the form of a matrix, all of them following the same rule. The candidate is required to follow the rule and identify the missing figure.

5. Rule Detection

Here a particular rule is given and it is required to select from the given sets of figures, a set of figures, which obeys the rule and forms the correct series.

BITSAT 2009 Nofitication and Important Dates

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Name: Barack Obama ( aka Barack Hussein Obama, Jr. )
Date of Birth: 4 August 1961, Honolulu, Hawaii, USA

Birth Name: Barack Hussein Obama Jr.

Nickname:

Barry
Bama
Rock
The One

Height

6′ 1½” (1.87 m)

Mini Biography

Barack Obama was born to a white American mother, Ann Dunham, and a black Kenyan father, Barack Obama, Sr., who were both young college students at the University of Hawaii. When his father left for Harvard, she and Barack stayed behind, and his father ultimately returned alone to Kenya, where he worked as a government economist. Barack’s mother remarried an Indonesian oil manager and moved to Jakarta when Barack was six. He later recounted Indonesia as simultaneously lush and a harrowing exposure to tropical poverty. He returned to Hawaii, where he was brought up largely by his grandparents. The family lived in a small apartment - his grandfather was a furniture salesman and an unsuccessful insurance agent and his grandmother worked in a bank - but Barack managed to get into Punahou School, Hawaii’s top prep academy. His father wrote to him regularly but, though he traveled around the world on official business for Kenya, he visited only once, when Barack was ten.

Obama
attended Columbia University, but found New York’s racial tension inescapable. He became a community organizer for a small Chicago church-based group for three years, helping poor South Side residents cope with a wave of plant closings. He then attended Harvard Law School, and in 1990 became the first African-American editor of the Harvard Law Review. He turned down a prestigious judicial clerkship, choosing instead to practice civil-rights law back in Chicago, representing victims of housing and employment discrimination and working on voting-rights legislation. He also began teaching at the University of Chicago Law School. Eventually he ran as a Democrat for the state senate seat from his district, which included both Hyde Park and some of the poorest ghettos on the South Side, and won.

In 2004 Obama was elected to the U.S. Senate as a Democrat, representing Illinois, and gained national attention by giving a rousing and well-received keynote speech at the Democratic National Convention in Boston. In 2008 he sought the Democratic nomination for the US Presidency.

Spouse
Michelle Obama (3 October 1992 - present) 2 children
Trivia

His first name comes from the word that means “blessed by God” in Arabic.

In the Kenyan town where his father was born, the long-brewed “Senator” brand of beer has been nicknamed “Obama.”

U.S. Senator from Illinois since 3 January 2005.

Won a Grammy for Best Spoken Word for the CD version of his autobiography “Dreams From My Father” (2006).

Lives in Hyde Park (Chicago).

On “Late Night with Conan O’Brien” (1993), he revealed that President George W. Bush nicknamed him “Bama” and “Rock”.

The movie he saw on his first date with Michelle Obama was Do the Right Thing (1989).

Related to Park Overall.

Has two daughters, Malia Obama (born in 1998) and Sasha Obama (born in 2001).

Candidate for the Democratic nomination in the 2008 US presidential election.

Several celebrities including; Halle Berry, George Clooney, Sheryl Crow, Bob Dylan, Topher Grace, Macy Gray, Bruce Springsteen, Oprah Winfrey Tom Hanks, Scarlett Johansson, Hayden Panettiere, Zachary Quinto, Eddie Murphy and John Cleese support his 2008 presidential campaign. Robert De Niro gave his endorsement at the same rally where Barack was endorsed by Caroline and Ted Kennedy.

Enjoys playing basketball and poker.

At his wife’s suggestion, he quit smoking before his campaign to win the Democratic nomination began.

His paternal relatives still live in Kenya.

Confessed teenage drug experiences in his memoirs “Dreams from My Father”.

One of his ancestors was Mareen Duvall, also an ancestor of actor Robert Duvall.

Shares his surname with a small city in western Japan, which means “small shore” in Japanese.

Plays basketball.

Born to Barack Hussein Obama, Sr. (1936-1982) and Ann Dunham (1942-1995), married from 1960 to 1965.

Named one of Time magazine’s “100 most influential people in the world” list in 2005 and 2007.

Chosen as one of “10 people would change the world” by New Statesman magazine (2005).

Won his second Grammy Award for Best Spoken Word Album for “The Audacity of Hope” (2008).

On June 3, 2008 he won the Montana primary election giving him enough delegates to become the first Black American presidential candidate to win a major political party’s presumptive nomination for the office of President of the United States.

Is a die-hard Chicago White Sox fan.

More than 215,000 people attended his speech in Berlin on 24 July 2008.

Has one half-sister, Maya, born to his mother and stepfather in 1970.

Has his look-alike puppet in the French show “Guignols de l’info, Les” (1988).

Is very distantly related to Lon Chaney.


Personal Quotes

(from DNC keynote speech) “There’s not a liberal America and a conservative America. There’s the United States of America. We worship an awesome God in the blue states, and we don’t like federal agents poking around our libraries in the red states. We coach Little League in the blue states, and have gay friends in the red states. There are patriots who opposed the war, and patriots who supported it. We are one people, all of us pledging allegiance to the Stars and Stripes, all of us defending the United States of America.”

And it lives on in those Americans — young and old, rich and poor, black and white, Latino and Asian and Native American, gay and straight — who are tired of a politics that divides us and want to recapture the sense of common purpose that we had when John Kennedy was President of the United States of America.

Sometimes I don’t know who I’m running against. (about Bill Clinton’s support for Hillary Clinton)

[When asked whether he would call on the Clintons to release their tax returns, after Hilary loaned $5 million of her own money to her campaign] I’ll just say that I’ve released my tax returns. That’s been a policy I’ve maintained consistently. I think the American people deserve to know where you get your income from. But I’ll leave it up to you guys to chase it down… I think we set the bar in terms of transparency and disclosure that has been a consistent theme of my campaign and my career in politics.

In the unlikely story that is America, there has never been anything false about hope.

When I am this party’s nominee, my opponent will not be able to say that I voted for the war in Iraq; or that I gave George Bush the benefit of the doubt on Iran; or that I supported Bush-Cheney policies of not talking to leaders that we don’t like. And he will not be able to say that I wavered on something as fundamental as whether or not it is ok for America to torture - because it is never ok. That’s why I am in it. As President, I will end the war in Iraq. We will have our troops home in sixteen months. I will close Guantanamo. I will restore habeas corpus. I will finish the fight against Al Qaeda. And I will lead the world to combat the common threats of the 21st century - nuclear weapons and terrorism; climate change and poverty; genocide and disease. And I will send once more a message to those yearning faces beyond our shores that says, “You matter to us. Your future is our future. And our moment is now.”

This time we want to talk about the crumbling schools that are stealing the future of black children and white children and Asian children and Hispanic children and Native American children. This time we want to reject the cynicism that tells us that these kids can’t learn; that those kids who don’t look like us are somebody else’s problem. The children of America are not those kids, they are our kids, and we will not let them fall behind in a 21st century economy. Not this time.

Frequently Asked Questions on Barack Obama

Q: Does Barack Obama have any siblings?

A: Obama has a half-sister, Maya Soetoro-Ng. She is a teacher and professor in Honolulu.

Q: What part does Michelle Obama play in her husband’s presidential campaign?

A: Completely at ease talking with crowds, she tirelessly campaigns for her husband and speaks of him and the election issues with passion and courage.

Q: Does Barack Obama have any children?

A: Barack Obama has two daughters, Malia and Natasha. They are currently being cared for by their grandmother, but Michelle Obama tries to fly home every night to tuck them into bed.

Q: Who are Barack Obama’s parents?

A: Barack Obama was born in Hawaii on August 4, 1961, to Barack Obama, Sr. and Ann Dunham. His parents met while attending the University of Hawaii, where his father was enrolled as a foreign student. Barack’s parents eventually divorced, and after his mother remarried, he lived in Indonesia for a time before returning to Hawaii to live with his grandparents. He later moved to New York, where he graduated from Columbia University in 1983.

Q: What is Obama’s religion?

A: He is a Christian who has attended Trinity United Church of Christ for nearly 20 years.

Q: Is Barack Obama a Muslim?

A: No, he is not a Muslim, he is a Christian. While his grandfather was a Muslim, and this father an atheist and his mother an agnostic, Barack has been an actively practicing Christian for nearly 20 years, attending Chicago’s Trinity United Church of Christ.

Q: What nationality is Barack Obama?

A: He is American, born in Hawaii on August 4, 1961, to Barack Obama, Sr. and Ann Dunham. His parents met while attending the University of Hawaii, where his father was enrolled as a foreign student. His mother is from heart land America (Kansas), and his father is from Kenya.

Official Website: www.barackobama.com

Click here for Barack Obama’s Facebook profile…

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Looking for a new laptop? Confused by the innumerable brands, speculations and technologies which are publicized? Here’s the information you need to be acquainted with to make an informed decision on buying the right laptop for your needs.

Below listed are some basics about laptops that you need to understand before you buy one.

  1. Processor: This is the brain of the computer. All the data is processed here be it any manipulation, calculation or any other formatting. The choice of processor will depend on how you intend to use the laptop. The specifications are directly proportional to pace of executing the different tasks. Higher the specifications, faster will be the speed at which tasks will be executed. Same way, the powerful processor will help perform more tasks better. Core duo the latest technology is faster and more energy-efficient.
  2. Software: Softwares act as the instruction manuals of the computer. They decide the actions of the machine. Some of these softwares come along with laptop. However for better and more comfortable usage of the same extra softwares have to be purchased and installed. To serve your basic needs on the computer you need to have at least the basic word processing and email enabling software.
  3. Operating System: The most important software that enables other softwares and applications to run on your PC is called the operating system. Without this software no applications shall work. Most of the PCS across the globe run a version of Microsoft Windows. They may be either Windows Vista (the latest version of Windows) or an earlier version, such as Windows XP, Windows 2000, Windows Me, or Windows 98. Apple computers run on an operating system called OSX.
  4. ROM: A chip on the motherboard which stores a permanent set of start-up instructions for your computer is called ROM (read only memory). This chip is fixed when the system is manufactured and all the instructions in it do not erase even if the power is off.
  5. RAM: This is the memory that the computer uses to run its operating system, applications and active data files. Higher RAM enables the computer to run complex programs and more of them at a time. RAM is highly responsible for the overall performance of the system. This memory makes your applications run faster and makes it possible to work with huge files. RAM starts at about 512MB; you can find some that can be upgraded all the way to 4.0GB.
  6. Cache: This memory is similar to RAM but runs at a very high speed. The CPU makes use of it as a storage place for processing instructions. Information in the cache memory is not retained once the power is off.
  7. Hard drive: Computer can take data from the hard drive to process information and also record the data back into the disk after the work is done. The sizes of the hard drive varies from 60GB, that is sufficient for basic computing needs, up to 120GB, ideal for multimedia, home entertainment and games.

Laptops based on your needs:

Below listed are the different user profiles and the kind of laptop that would suit each of them:

  1. Home user:

    Most of the home users now prefer notebooks over desktop PCs. This is because these devices perform equally well and possess equally good features. Besides they can be easily carried to different locations.

    Undoubtedly all laptops would be suitable for home use; however there are two types of laptops that would best serve the purpose, the midsize notebooks, which are budget-friendly, and the desktop replacements, which are packed with features.

    Key features desirable in laptops for home use:

    A memory size of minimum 1GB is recommended for these laptops. A hard drive large enough to store digital photos and videos will be needed. The display should be 14.1 inch or larger. A fixed or swappable DVD burner will also be a necessity. Both wired and wireless networking will be needed. Microsoft Windows Vista Home Premium or Apple Mac OS X is the operating systems recommended.

  2. Student

    This is the kind of users who have strict budget constraints. Though this is a major factor, they expect a laptop that gives best performance for the money they pay. A laptop that should suit their need will be one that is light enough to be carried around, stylish enough to flaunt but tough enough to bear the wear and tear of each day.

    Key features desirable in laptops for student use:

    A memory size of at least 1GB is needed. A hard drive big enough to hold all those MP3s is needed. A DVD burner is needed as a backup for all those class projects, etc. Wired and wireless network will be needed as you can be in the network equipped classrooms or you may have to make use of the wireless in the other outside locations. Microsoft Windows Vista Home Premium or Apple Mac OS X is recommended.

  3. Frequent flier

    For those who spend a lot of time traveling, the size and the weight are key factors that have to be taken into consideration while selecting a laptop. These factors are so important that compromising slightly on the features and the performance wouldn’t be a loss. Ultraportables are the smallest and the lightest notebooks. They weigh less than four pounds and as thick as a spiral bound notebook.

    Key features desirable in laptops for frequent fliers:

    A memory size of at least 1GB is recommended for these laptops. The display should be of maximum 13.3inch. Both wired and wireless networking will be needed here too. Extended battery is a must for those traveling far. An external CD-RW/DVD drive is recommended. A port replicator will be needed for the desk. Microsoft Windows Vista Business is recommended for this type of laptops

  4. Business power user

    For those business people who make use of the same laptop in office, home and the road, a well balanced system is a must. The laptop has to be capable of delivering a performance that can gel with the wide range of applications that the business would make use of. A thin and light model would be the best option.

    Key features desirable in laptops for business users:

    A memory size of at the least 1GB is recommended. For those using Windows Vista, memory should be 2GB. A midsize hard drive will be enough. The display should be 14-inch or 15.4-inch. A dual-layer DVD burner will be more suitable. Both wired and wireless networking will give the desired comfort in using the laptop. An extra battery is undoubtedly a must for these users. Microsoft Windows Vista Business or Windows Vista Ultimate are the preferred options.

  5. Multimedia author or gamer

    If you have to make use of the laptop to design a Web site or edit home movies, the device will need a powerful processor, large memory, great graphics, and a healthy hard drive.

    Key features desirable in laptops for multimedia users:

    A memory size of 2GB and a display size of at least 15.4 inch or more is a must in these laptops. To serve the need an advanced graphics card with 256MB or 512MB of its own memory or dual SLI graphics is needed. The hard drive has to be the largest and the fastest, in order to enable the laptop to perform according to your needs. Dual-layer DVD burner, possibly HD-DVD or Blu-Ray compatible is recommended. Multimedia connectors, such as S-Video, HDMI, FireWire, S/PDIF, external keyboard and mouse can make the use more comfortable. Microsoft Windows Vista Home Premium or Ultimate, or Apple Mac OS X is recommended.

Laptops based on its size:

The varied sizes available in laptops have their respective pros and cons. While you take benefit of one feature, you have to compromise on some other. With the decreasing size though the laptop becomes comfortable to carry, some features have to be compromised. Conversely the full featured laptops become difficult to carry. Below given details will help you learn more about what each type of laptop has to offer.

  1. The Ultraportable

    Ultraportables are the smallest, most lightweight laptops. This compactness that the ultraportables offer is the most beneficial factor for the frequent business travelers and all others who need to have their PC with them all the time. Though these types of laptops offer excellent portability, users have to compromise on its features, its performance, size of the keyboard, display, etc.
    Ultraportables
    Weight: Up to 4 pounds.
    Thickness: Less than 1 inch?
    Display: Smaller than 14 inches (diagonal)
    Processor: Slower, low-voltage mobile processors; some dual-core CPUs
    Features: Fewer ports and connections; 60GB to 120GB hard drive
    Networking: LAN, modem, Wi-Fi, Bluetooth (optional), WWAN (optional)
    Other things to note: Small keyboard and touch pad; may lack an internal optical drive

  2. Thin-and-light

    This type of laptop offers a balanced combination of portability, performance, features, and cost. Its power-tuned mobile processors give enough power to keep the work go on smoothly. The thin-and-lights offer a more reasonably sized keyboard and display, a larger hard drive, and a built-in optical drive. Though these models are more expensive than slightly larger, heavier midsize laptops, they are the best choice if you need maximum productivity in a portable package.
    Thin-and-light
    Weight: 4 to 6 pounds
    Thickness: Approximately 1 inch
    Display: 12 to 14 inches (diagonal), probably wide screen)
    Processor: Midrange-to-fast dual-core processors
    Features: Most ports and connections; 80GB to 120GB hard drive; optical drive
    Networking: LAN, modem, Wi-Fi, Bluetooth (optional), WWAN (optional)
    Other things to note: Small keyboard and touch pad

  3. Midsize (mainstream)

    Most inexpensive laptops are the midsize ones. Typically a midsize laptop delivers everything you need for basic computing like word processing, storing digital photos. Everything for home entertainment like burning CDs, watching DVDs, and everything for online communication like e-mail and Web surfing are offered in midsize laptops. These models are slightly smaller than desktop replacements and have a limited battery life therefore midsize laptops aren’t suitable for regular travel.
    Midsize
    Weight: 6 to 8 pounds
    Thickness: More than 1 inch
    Display: 14 to 15.4 inches (diagonal), possibly wide screen
    Processor: Slow/budget AMD Sempron or Intel Celeron, midrange AMD Turion 64 or Intel Core Duo, or fast Turion 64 X2 or Core 2 Duo processors
    Features: Most ports and connections; 60GB to 100GB hard drive; DVD burner; memory card reader; decent software package
    Networking: LAN, modem, Wi-Fi
    Other things to note: May be less attractively designed; may suffer from mediocre performance and battery life

  4. Desktop replacement

    The largest and the heaviest of the laptops are the desktop replacements. They are capable of delivering the features and performance like that of a desktop PC. As the features suggest these models are not easy to carry around. This model offers the best performance, the largest screens and keyboards. Overall this model offers the most complete set of features available in any laptop. This model is most common among home and business users. These systems have enough computing muscle for serious gaming, multimedia authoring, and even high-level digital audio and video work.
    Desktop-replacement
    Weight: 7.5 pounds or more
    Thickness: More than 1 inch
    Display: 17 to 20 inches (diagonal)
    Processor: Fast dual-core processors
    Features: Wide array of ports and connections; 80GB to 240GB hard drive space; double- layer DVD burner.
    Networking: LAN, modem, Wi-Fi, Bluetooth (optional)
    Other things to note: Large keyboard, separate number pad, large touch pad; batteries not designed for lengthy mobile use.

  5. Tablet PC

    The tablet PCs were once used as a tool for the specialized industries. With its portability, flexibility, and wow factor, this range of laptops is gaining wider audience. In terms of size and weight this model is very much similar to the ultraportable and thin and light. On this tablet PC you can take handwritten notes and navigate menus, documents, and Web pages using a stylus directly on the screen. The most common type of this range is the convertible tablet. The convertible tablet is like a traditional laptop but has a display that swivels 180 degrees and folds flat over the keyboard. Slate tablets another of this range, lack keyboards–they’re all screen. The smallest of the tablet range are the, ultramobile PCs. With the 7-inch touch-screen displays and enhanced media player features the ultramobile PCs bridge the gap between PDA and ultraportable.
    Tablet-PC
    Weight: Usually 4 pounds or less, with some slates weighing as little as 2 pounds; UMPCs weigh less than 2 pounds; some larger laptops incorporate tablet functionality
    Thickness: Less than 1 inch
    Display: 12 inches (diagonal) or smaller digitized display
    Processor: Moderate mobile processors
    Features: Fewer ports and connections; 30GB to 60GB hard drive
    Networking: LAN, modem, Wi-Fi, Bluetooth (optional), WWAN (optional)
    Other things to note:Microsoft Windows Vista OS; handwriting recognition software

Also see:

The Laptop Lover’s Guide to Productivity On-the-Go

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