Computer System
Karnataka Board · Class 11 · Computer Science
Quick revision notes for Computer System — Karnataka Board Class 11 Computer Science. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Introduction to Computer System
- A computer is an electronic device that accepts input, processes data, and generates output
- Computer system = Computer + Additional hardware + Software
- Main components: CPU, Memory, Input/Output devices, Storage devices
Evolution of Computer
- Computing evolution: Abacus (500 BC) → Modern computers (present)
- Key milestones: Pascaline (1642), Analytical Engine (1834), Tabulating Machine (1890)
- Turing Machine (1937) - concept of programmable machine
Computer Memory
- Memory units: Bit → Nibble (4 bits) → Byte (8 bits)
- Memory hierarchy: KB → MB → GB → TB → PB → EB → ZB → YB
- Each unit is 1024 times the previous unit (not 1000)
Data Transfer and System Bus
- Data transfer uses physical wires called 'bus'
- Three types of buses: Data bus, Address bus, Control bus
- System bus = Data bus + Address bus + Control bus
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What are the important topics in Computer System for Karnataka Board Class 11 Computer Science?
Computer System covers several key topics that are frequently asked in Karnataka Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- Karnataka SSLC — kseeb.kar.nic.in
- Dept of Pre-University Education, Karnataka
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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