WBCHSE Class 11 Computer Science Syllabus

 

Table of Contents

• Brief review of Computer System.
• Operating System.
• Programming in C.
• Practical

Class XI                                                      Theory - 70 Marks

A. Brief Review of Computer Systems:

i. Computer Organization: (10 Marks)

1. 1. • History of Computers
      • Computer Generations
      • Functions of Computer
      • Block Diagram of a Computer System
      • Brief description of each functional block of a computer –
        • Input Devices (Keyboard, Mouse, Touch Screen, OMR, OCR, MICR, Punch Tape, Punch Card, Graphic Tablet, Barcode Reader, Light Pen)
        • Output Devices (Monitor – CRT, LCD; Printer)
        • CPU (CU, ALU)
        • Memory – Primary [ROM (PROM,EPROM, EEPROM), RAM (SRAM, DRAM)] and Secondary( HDD, FDD, CD-ROM) and Cache Memory
        • Bus : Definition and Types

ii. Data Representation: (8 Marks)

• Number Systems – Decimal, Binary, Octal and Hexadecimal Number
• Conversion (whole numbers and fractions) of
  • Binary to Decimal, Octal, Hexadecimal and vice versa
• Addition, Subtraction, Multiplication, Division in all the above number systems
• Different methods of Negative Number Representation
  • Signed Magnitude
  • One’s Complement
  • Two’s Complement

iii. Topics on Boolean Algebra: (12 Marks)

• Logical Operations – OR, AND, NOT logic
• Laws and Identities of Boolean Algebra
• De’ Morgan’s Theorems and Basic Principle of Duality
• Proof using Identities and Truth Tables
• Combinational logic functions, SOP and POS expressions
• Logic Gates – OR, AND, NOT, XOR, X-NOR Gates
• Universal Gates – NAND and NOR Gate; Basic gates using Universal Gates
• Simple combinational circuit design using gates and simple cases of minimization
• Combinational Circuits (conversion is not necessary)
  • Half Adder & Full Adder (definition and representation)
  • Half Subtractor & Full Subtractor (definition and representation)
  • Multiplexer (4x1) and Demultiplexer (1x4)
  • Decoder and Encoder (Maximum 3 bits)
• Multiplication and Booth’s Algorithm

B. Operating Systems: (10 Marks)

• Function and role of Operating System
• Booting(cold and hot)
• Directory and File Structure, Path and Pathname
• File naming system, System files, Batch files, executable files
• Familiarities with different commands and utilities of MS-DOS and MS-Windows
• Familiarities with GUI
• Study of UNIX / Linux with respect to commands and utilities

C. Programming in C: (30 Marks)

• Concept of Algorithm and Flowchart (Time & Space requirements)
• Introduction to C
• Character Sets, Keywords, Constants, Variables, Operators in C
• Data types in C
• Header files
• Input/Output operations
• Control structures
• Loop structures
• Array
• String
• Functions (user-defined and common library functions) including recursive function
• Structures
• Simple problem solving

 

Detailed Practical Syllabus of Computer Science Class XI

Practical - 30 Marks

1. Familiarization with Computer System and MS Windows-(5 Marks)
2. MS-DOS / UNIX / LINUX Operating System Commands-(5 Marks)
3. Programming in C (Algorithm, Flow Chart, Coding , Execution) (10 Marks)
4. Laboratory Copy - (5 Marks)
5. Viva Voce (5 Marks)