Computer Definition
A device that computes, especially a programmable electronic machine that performs high speed mathematical or logical operations or that can assemble, stores, correlates, or otherwise process information.
Classification of Computer
Computers are assembled in different sizes and configurations as per requirements. Mainly Compuet can be classified as per
1. Generations
2. Size
3. Data Processing Technique
1. Generations
2. Size
3. Data Processing Technique
Basic Organization of Computer
Logically a computer system can be divided into following main units:-
1. Input Unit
2. Storage Unit
3. Processing Unit
4. Output units
1. Input Unit
2. Storage Unit
3. Processing Unit
4. Output units
Computer Hardware and Software
Hardware is a physical part of a computer that you can carry, feel, see and touch. Software is a collection of computer programs that are developed by a group of instructions written in the programming language.
Computer Peripherals
All the input and output devices that are connected with PC known as Computer Peripherals.The devices that are used to provide input to a computer called Input devices such as Keyboard, Mouse, Scanner, etc.
The devices that are used to show output to the user called Output devices such as Monitor, Printer, etc.
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