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1.1 Brief History of Computer Systems and Generations of Computers

Computer Science · Class 9

Q1. Define 1.1 Brief History of Computer Systems and Generations of Computers.

Q2. Explain the main ideas in 1.1 Brief History of Computer Systems and Generations of Computers.

Q3. Give one clear example of 1.1 Brief History of Computer Systems and Generations of Computers and say why it fits.

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1.2 Understanding Systems and their Types

System: A system is a collection of interconnected components working together to achieve specific goals. It processes inputs to produce desired outputs. Natural Systems: Natural systems occur organically in nature, characterized by self-regulation, adaptability, and stability. They consist

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1.3.1 Input Devices

Input Devices: Input devices are the means by which users provide data and instructions to the computer, facilitating interaction between humans and the computer.

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1.3.2 System Unit

System Unit: The system unit is the central hub of the computer, housing its components, such as the motherboard, processor, and drives. All input and output devices connect to the system unit.

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1.3.3 Storage Devices

Storage Devices: Storage devices hold data and programs, either for long-term retention or temporary access. These devices range from internal fixed drives to portable external devices.

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1.3.4 Output Devices

Output Devices: Output devices are used to provide the results of processed data in various formats, including visual, printed, and audio.

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1.3.5 Ports, Expansion Slots and Expansion Cards

Ports, Expansion Slots and Expansion Cards: These components enable the connection and enhancement of the computer's capabilities by providing interfaces for external devices and sockets for additional hardware.

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