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Computer System — Revision Notes

Jammu & Kashmir Board · Class 11 · Computer Science

Computer System revision notes for Jammu & Kashmir Board Class 11 Computer Science: 4 topics in quick points. Includes Computer System and CPU, Evolution.

43 questions80 flashcards5 formulas & key relations5 concepts

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Key Topics to Revise

1

1. Computer System and CPU

  • A computer system primarily comprises CPU, memory, input/output devices, and storage devices.
  • CPU is the electronic circuitry that carries out the actual processing and is called the brain of the computer.
  • CPU is also popularly known as processor or microprocessor.
2

2. Evolution of Computer and Architecture

  • Von Neumann architecture consists of CPU, memory, input/output devices, and communication channels.
  • ENIAC is the first binary programmable computer based on Von Neumann architecture.
  • In 1965, Gordon Moore introduced Moore's Law.
3

3. Computer Memory and Units

  • Computer memory stores data and instructions for processing.
  • Primary memory is the main memory used during processing.
  • Secondary memory stores data, instructions, and results permanently for future use.
4

4. Data Transfer and Bus System

  • Data are transferred between components of a computer system using physical wires called bus.
  • Three types of bus are data bus, address bus, and control bus.
  • Data bus transfers data between different components.

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Full Notes

Key Concepts

A computer system includes the computerThe CPU is the electronic circuitryThe ALU performs arithmetic and logicRegisters are small local memory unitsPrimary memory is directly accessed by

Frequently Asked Questions

What are the important topics in Computer System for Jammu & Kashmir Board Class 11 Computer Science?
Key topics in Computer System include Computer System and CPU, Evolution of Computer and Architecture, Computer Memory and Units, Data Transfer and Bus System. Study these first, then practise questions on each for Class 11 exams.
How should I revise Computer System for Class 11 exams?
Learn the core ideas first, then work through the 43 practice questions on Computer System. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Jammu & Kashmir Board Class 11 Computer Science Revision Notes

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