Computer System — Chapter Summary
CBSE · Class 11 · Informatics Practices
Summary of Computer System for CBSE Class 11 Informatics Practices. Part of the CBSE Class 11 Informatics Practices syllabus.
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Overview
A computer system is an electronic setup that accepts input data, processes it, and produces output. It works only when hardware and software function together. The main parts are CPU, memory, input devices, output devices, and storage devices. The CPU is the processing unit, RAM and ROM are primary
Key Concepts
A computer system is a combination
A computer system is a combination of hardware and software. It includes the CPU, memory, input/output devices, and storage devices working together a
The CPU is the electronic circuitry
The CPU is the electronic circuitry that carries out actual processing. It is called the brain of the computer and is also known as the processor or m
The ALU performs arithmetic and logical
The ALU performs arithmetic and logical operations. The CU controls the sequence of instruction execution, interprets instructions, and guides data fl
Registers are the CPU's local memory
Registers are the CPU's local memory. They are limited in size and number and store data, instructions, and intermediate results during processing.
Primary memory is directly used by
Primary memory is directly used by the CPU during processing. It has two types: RAM and ROM.
Learning Objectives
- Understand the meaning of a computer and a computer system
- Identify the main components of a computer system
- Explain the role of CPU, ALU, CU, and registers
- Differentiate between RAM, ROM, cache memory, and secondary memory
- Understand units of memory such as nibble, byte, KB, MB, GB, and larger units
Frequently Asked Questions
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- 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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