Computer hardware is the physical part of a computer and is completely different software or computer programs and data used in the hardware. The hardware of a computer is rarely changed, such changes with the software and data that can be easily formed, or remove in comparison with the computer. Normal users do not see most of the hardware because it is included as embedded systems in automobiles, microwave ovens, CD players and many other appliances.
A typical PC consists of a box office and other miscellaneous items. Motherboard or system board with slots for expansion cards and coins, including the holding Central Processing Unit (CPU), random access memory (RAM) for the implementation of the program and short term storage data. There is also a PCI bus, PCI-E or AGP bus, ISA bus, USB and power supply, transformer, voltage control and fan a.
To check the memory controller of IDE, SATA, SCSI or other type, hard disk, floppy disk, CD-ROM and other drives. Video display controller that the computer screen to exit the bus controller computer makes the computer to connect external devices such as printers or scanners.
A type of removable media including CD writer, CD-ROM, CD, DVD, DVD-ROM, DVD, DVD-RAM, floppy drive, Zip drive, a USB flash drive, tape drive – mainly for backup storage and long-term, internal memory, the data left in the computer for later use. Hard drive is used for medium-term storage of data. Sound card translates the analog signals into voltages, and the motherboard has connectors for plug-in speakers. Networks is used to set the computer on the Internet and / or other computers and a modem for remote connections.
In addition, equipment and external components of the computer. Especially the computer input devices are keyboard, pointing device, mouse, trackball, joysticks, joysticks, gamepads image, video input devices, scanners, webcam, microphone and audio input devices.
The output devices include printers, monitors, audio output devices, speakers and headphones.
