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Meaning, Glossary and Acronym > Computer Hardware

Computer hardware

Hardware is a comprehensive term for all of the physical parts of a computer, as distinguished from the data it contains or operates on, and the software that provides instructions for the hardware to acoomplish tasks. The boundary between hardware and software is slightly blurry - firmware is software that is "built-in" to the hardware, but such firmware is usually the province of computer programmers and computer engineers in any case and not an issue that computer users need to concern themselves with.



A typical computer (Personal Computer, PC) contains in a desktop or tower case the following parts:
  • Motherboard which holds the CPU, main memory and other parts, and has slots for expansion cards
  • power supply - a case that holds a transformer, voltage control and fan
  • storage controllers, of IDE, SCSI or other type, that control hard disk , floppy disk, CD-ROM and other drives; the controllers sit directly on the motherboard (on-board) or on expansion cards
  • graphics controller that produces the output for the monitor
  • the hard disk, floppy disk and other drives for mass storage
  • interface controllers (parallel, serial, USB, Firewire) to connect the computer to external peripheral devices such as printers or scanners
 
 
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