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Computer hardware


Computer hardware is a physical part of a computer and is completely different from computer software or computer software and hardware data. Computer hardware is seldom altered against software and data that can be easily converted, modified, or deleted on your computer. Normal users do not see most computer hardware as embedded systems are embedded in cars, microwave ovens, compact disks, and many other home appliances.

A typical personal computer consists of a table and a different case. Motherboard or motherboard with expansion cards and brackets, including central processing unit (CPU), random access memory (RAM) for program execution and short term storage. PCI bus, PCI-E or AGP bus, ISA bus, USB and power supply with transformer, voltage regulator and fan.

IDE, SATA, SCSI or other types of storage controllers that control hard disk, floppy disk, CD-ROM, and other drives. Video display controller that outputs the computer output Computer bus controllers connect the computer to external peripherals such as printers or scanners.

Some of the removable media is a CD, CD-ROM drive, CD writer, DVD, DVD-ROM drive, DVD writer, DVD-RAM drive, floppy disk, Zip drive, USB flash drive, tape drive backup and long-term storage , Internal storage that stores the data inside the computer for later use. The hard disk is used to store the data in the medium term. The sound card transforms the signals from the system board to an analog voltage level, and the terminals are used to connect the loudspeakers. Network management is used to connect your computer to the Internet and / or other computers and modem telephone connections.

In addition, the hardware may include the external components of a computer system. In particular, computer input devices include the keyboard, pointing devices, mouse, trackball, gaming devices, joysticks, gamepad, video input devices, image scanner, webcam, audio input devices, and microphone.
Output devices consist of printers, monitors, audio output devices, loudspeakers, and earphones.

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