| Computer hardware means the physical part of a | | | | computer to external peripheral devices such as |
| computer and it is totally different from computer | | | | printers or scanners. |
| software or computer programs and data that | | | | Some type of a removable media writer includes |
| are used within hardware. The hardware of a | | | | CD, CD-ROM Drive, CD Writer, DVD, DVD-ROM |
| computer is rarely changed as compared with | | | | Drive, DVD Writer, DVD-RAM Drive, Floppy disk, |
| software and data, which are readily shaped, | | | | Zip drive, USB Flash Drive, Tape drive - mainly for |
| modified or erased on the computer. Normal | | | | backup and long-term storage, Internal storage |
| users do not see most computer hardware as it | | | | that keeps data inside the computer for later use. |
| is enclosed as embedded systems in automobiles, | | | | Hard disk is used for medium-term storage of |
| microwave ovens, compact disc players and | | | | data. Sound card translates signals from the |
| many other household appliances. | | | | system board into analog voltage levels and has |
| A typical personal computer consists of a case in | | | | terminals to plug in speakers. Networking is used |
| desktop and other different parts. Motherboard or | | | | to connect the computer to the Internet and/or |
| system board with slots for expansion cards and | | | | other computers and modem for dial-up |
| holding parts including Central processing unit (CPU) | | | | connections. |
| , Random Access Memory (RAM) for program | | | | In addition, hardware can include external |
| execution and short-term data storage. It also | | | | components of a computer system. Mainly the |
| consists of PCI bus, PCI-E or AGP bus, ISA bus, | | | | computer input devices includes keyboard, pointing |
| USB and power supply that holds a transformer, | | | | devices, mouse, trackball, gaming devices, |
| voltage control and fan. | | | | joystick, gamepad image, video input devices, |
| The storage controllers of IDE, SATA, SCSI or | | | | image scanner, web cam, audio input devices and |
| other type, that control hard disk, floppy disk, | | | | microphone. |
| CD-ROM and other drives. Video display controller | | | | Output devices consist of printer, monitor, audio |
| that produces the output for the computer | | | | output devices, speakers and headset. |
| display Computer bus controllers to connect the | | | | |