Computer all parts details


Here are the components and peripherals necessary to assemble a basic modern PC system:
  • Motherboard.
  • Processor.
  • Memory (RAM)
  • Case/chassis.
  • Power supply.
  • Floppy drive.
  • Hard disk.
  • CD-ROM, CD-RW, or DVD-ROM drive.


Computer - Definition, parts, functions and its advantages

                                   An electronic data processing device, which requires input raw data for processing and generates the output in desired form. It stores the data in its memory which can be accessed any number of times for reference from its memory. It is made up of a lot of electronics, software and mechanical parts.

A computer is divided into three basic units namely:

  1. Input Unit
  2. Central Processing Unit
  3. Output Unit

These units are defined as below:

1) Input Unit

As the name suggests, this unit contains devices with the help of which the data is entered into the computer. This unit is a basic requirement for computer system. The input devices are of many types such as keyboard, mouse, joy stick, microphone, camera etc. Input devices give different set of input values converted into a form understandable to the computer.

2) Central Processing Unit (CPU)

Central Processing Unit (CPU) is known as the brain of the computer. It performs all types of data processing operations as required by a programmer. It stores all the data, intermediate results, and instructions as given by the programmer in the form of codes (program). Central Processing unit controls the operation of each part of the computer.


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                                Computer Hardware Physical structure that houses a computer's processor, memory, storage, communication ports and peripheral devices. Each of these components (called devices) have a different purpose, which may be either accepting inputs, storing data or sending outputs. For example, a mouse and a microphone are input devices used to record user activities and transform them into data that is transmitted to the system unit. A hard disk is a storage unit where data is stored and accessed by other devices. A monitor or a speaker are output devices that transform processed data into (respectively) video and audio signals. Usually, the core components that represent the bare minimum that allow a computer to function are: Processor (CPU) The component that processes and executes inputs received from hardware and software. Motherboard A mainboard that provides basic connection between all the other hardware components and devices (internal and external).
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