WBCHSE Class 11 Syllabus for Computer Application

COMPUTER APPLICATION (COMA)
Class - XI
Full Marks 100
THEORY - 70 Marks
PRACTICAL - 30 Marks

A. Brief Review of Computer Systems
(40 Marks)

i) Evolution of Computers and Computer Organization :

ƒ Evolution of Computers
o Abacus, Napier’s Bone, Pascaline, The Babbage Machine
o Stored Program Concept, Von Neumann Concept / Architecture
ƒ Computer Hardware Generations
o First, Second, Third, Fourth and Fifth Generation of Computers;
o Components, Advantages, Disadvantages
ƒ Concept of Circuit Integration
o SSI, MSI, LSI, VLSI, ULSI
ƒ Classification of Computers
o Analogue, Digital, Hybrid Computers
o Mainframe and Super Computer
o Mini, Micro, Laptop Computer
ƒ Computers in Modern Society
ƒ Concept of Data and Information, Data Processing
ƒ Brief description of each functional block of a computer
o Block Diagram of a Computer System
o Input Devices (Keyboard, Mouse, Scanner, Touch Screen, OMR, OCR, MICR,
Graphic Tablet, Barcode Reader, Light Pen, Microphone, Joystick)
o Output Devices
ƒ Monitor – CRT, LCD

180

ƒ Printer – Impact Printers (Dot Matrix Printer), Non-Impact Printers
(Inkjet Printer, Laser Printer)
ƒ Plotter
o Central Processing Unit : CU, ALU
o Storage Devices
ƒ Primary Memory : RAM (DRAM, SRAM), ROM (PROM, EPROM,
EEPROM, UVPROM)
ƒ Secondary Memory : Magnetic Media (HDD, FDD), Optical Media
(CD, DVD, Blue-Ray Disk)
ƒ Cache Memory
ƒ Flash Memory

o Communication Bus
ƒ System Bus – Address Bus, Data Bus, Control Bus, Power Bus

ii) Data Representation :

ƒ Number Systems
o Concept of Non-Positional Number System
ƒ Roman Number System
o Concept of Positional Number System
ƒ Decimal, Binary, Octal and Hexadecimal Number System
o Conversion
ƒ Inter-conversion between Decimal, Binary, Octal and Hexadecimal
Numbers (Whole numbers and Fractions, using Double Add and Half
Add Methods)
o Arithmetic
ƒ Addition, Subtraction – Decimal, Binary, Octal and Hexadecimal
Numbers
ƒ Multiplication, Division – Binary Number System only
o Different methods of Negative Number Representation
ƒ Signed Magnitude
ƒ One’s Complement
ƒ Two’s Complement

181

ƒ Subtraction using Complements (1’s, 2’s complement)

ƒ Various Binary Coding Schemes
o BCD
o EBCDIC
o ASCII
o ISCII

ƒ Concept of Fixed and Floating Point Numbers
o Difference between fixed and floating point numbers

ƒ Bit map representation of images

ƒ Concept of Multimedia

iii) Boolean Algebra

ƒ Definition and postulates.
ƒ Boolean operations – OR, AND, NOT
ƒ Proof using identities and truth tables
ƒ De’ Morgan’s Theorems and Basic Principle of Duality
ƒ Deriving truth table from Boolean expression and vice versa
ƒ SOP and POS Expressions (Minterm and Maxterm expressions)
ƒ Canonical form of Boolean expressions and their complements
ƒ Simplifications

B. Software and Languages
(10 Marks)

ƒ Definition of Software
ƒ Programming Languages : Concepts of High Level, Low Level and Assembly language
ƒ Types of Software

182

ƒ System Software
ƒ Translator – compiler, interpreter, assembler
ƒ Operating systems:
ƒ Definition and Function
ƒ Types of OS – Single User, Multi-user, Multiprogramming,
Multiprocessing, Time Sharing
ƒ Booting (cold and warm), Spooling, Buffering, Concept of Virtual
Memory
ƒ Directory and file Structure, Path and Pathname
ƒ Concept of GUI, CUI with examples
ƒ Using MS DOS (Commands and their use – DIR, MD, RD, CD,
COPY, CON, MOVE, REN, DEL, TYPE, MORE, ATTRIB, EDIT,
DATE, TIME, CLS)
ƒ Using MS Windows OS
ƒ Application Software (definition and example)
ƒ Utility Software (definition and example)

C. Programming using Visual Basic
(10 Marks)

ƒ Introduction to Visual Basic (Version 6 or compatible)
ƒ Getting familiar with VB user interface
o Standard exe, pull-down menus, toolbar, toolbox, project explorer, properties
window, form layout window, form immediate window, opening and closing
windows, resizing and moving windows, quitting VB
ƒ VB Tool Box
o Standard window controls, label, textbox, command-button, frame, check-
box, option-button, list-box, combo-box, picture box, timer control, shapes
o Basic properties of controls
ƒ Programming Fundamentals
o Date types in VB (integer, long, single, double, currency, string)
o Variable and Constants

183

o Input / Output operations
o Control Statements
ƒ Branching: If-Then-Else, Switch
ƒ Looping: For-Next, While, Do-While
ƒ Simple problem solving

D. Word Processing using MS Word
(MS Office 2007 or compatible)
(05 Marks)

ƒ Introduction to Word Processing

ƒ Creating, Opening, Editing and Saving a document

ƒ Copy, Cut, Paste operations

ƒ Page Setup, Headers and Footers

ƒ Formatting Texts, Paragraph, Page Borders

ƒ Inserting Clip-Art, Word-Art, Auto-Shapes, Picture, Symbol, Equation

ƒ Table insertion

ƒ Mail Merge

ƒ Macros

ƒ Spelling and Grammar check

ƒ Printer Setup and Document Printing

E. Power Point Presentation using MS Word
(MS Office 2007 or compatible)
(05 Marks)

ƒ Introduction of Power Point

ƒ Creating, Opening, Editing and Saving a PowerPoint presentation

ƒ Use of Wizards

184

ƒ Different styles and background

ƒ Formatting Texts

ƒ Inserting Clip-Art, Word-Art, Auto-Shapes, Picture

ƒ Applying slide-transition, applying animation to text and objects

ƒ Inserting sound and video-clips

ƒ Slide Show

ƒ Printing of slides

F. Practical
(30 Marks)

ƒ One program on Visual Basic (10 Marks)

ƒ Laboratory Copy (Minimum 10 programs) (5 Marks)

(Suggestive programs on VB are given below)

o To display a message using Label, Textbook, Message Dialogue

o To concatenate two text entries and display

o To perform a simple arithmetic operation (+,-,*,/) and display the result in message
dialogue or textbox

o To make simple decision making (IF statement) solution and display relevant
message (example: problems related to eligibility for a given value of age, profit/
loss messages for given values of cost price and sale price, grade display for
given values of marks of students etc.)

185

o To create a simple GUI application to perform both arithmetic and logical
operations together (Total, Average, Grade calculation of given set of marks,
salary calculations on different criteria)

o To create a simple GUI application to perform an operation based on the criteria
input by the user in a checkbox/radio button

(ex1: Find the discount of an item on the basis of category of item [electrical
appliance / electronic gadget/stationery specified using a radio button] and its
cost [below 1000/above 1000/equal 1000 specified using radio button])

(ex2: Calculate the incentive of a sales person on the basis of his sales amount,
customer feedback, count of customer specified using checkbox)

o To create a simple GUI application to change the properties of a control based
on the selection made by the user.

(ex1: To change the background/foreground colour of any of the controls of the
form based on the colour selected from a list)

(ex2: To change the background/foreground colour of a label based on the values
input/stored in a combo-box)

ƒ Use of MS Word – Same features as in Theory part (5 Marks)

ƒ Use of PowerPoint – Same features as in Theory part (5 Marks)

ƒ Viva Voce (5 Marks)

186