What is 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 accomplish 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.
- 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, Fire wire) to connect the computer to external peripheral devices such as printers or scanners