COMPUTER HARDWARE

Hardware is all the physical parts of the computer, and are distinguished by the data in it or who operate in it, and are distinguished by the software (software) that provides instructions for the hardware to complete the task.
Boundary between hardware and software will be a little blurry when we speak about firmware, because this firmware is software that is "made" into the hardware. This firmware is the area of computer science and computer engineering, which is rarely known by the general user.
Computers in general is a personal computer (PC) in the form of a desktop or tower box consisting of the following sections:
1.Mother board which houses the CPU, memory and other parts, and has a slot for additional cards.
2.RAM where short-term data storage, so the computer does not need to always accesthe hard disk to find data. The number of larger RAM will help speed your PC Buses: PCI Bus ISA Bus USB AGP
3.ROM (Read Only Memory) in which the firmware is put
4.CPU (Central Processing Unit) as the main part of the brain and the computer
5.Power supply - a box which houses the transformer, voltage and fan control
6.Storage controller, the type of IDE, SCSI or something else, which controls the hard disk, floppy disk, CD-ROM and other drives; controller is located on the main board (on-board) or the additional card Controller video performance that produces output for computer displays

7.Computer bus controllers (parallel, serial, USB, Firewire) to connect the computer with other external additional equipment such as printers or scanners
8.Several types of computer storage: CD - the most common type of removable media, cheap but easily broken. CD-ROM , CD-RW , CD-R , DVD ,DVD-ROM , DVD-RW , DVD-R
9.Floppy disk Storage in - store data in a computer for long-term use.
10.Hard disk - for long-term data storage Disk array controller
11.Sound card - translates signals from the system board to the language that can be understood by speakers, and has terminals for the cable striking the earphone.
12.Computer network - to connect the computer to the Internet and / or other computers.

13.Modem - for dial-up connections.
14.Network card - for Internet DSL / cable, and / or connect to another computer.
In addition, hardware can include other external components. Below is a standard component or commonly used.
Input Keyboard Pointing device,Mouse Trackball , Joystick , Gamepad, Scanner picture, Webcams ,Graphics Tablets
Output Printer , Speaker , Monitor , Network / Networking , Modem , network card .