Hardware Computer

Understanding of computer hardware (hardware) is one component of a computer appliance that nature can be seen and touched by humans directly or tangible form, which serves to support the process of computerization.

Computer hardware can work on the orders given to him, or is called the instruction set. With the commands that can be understood by the hardware, then he can do various activities that have been determined by the command.

All the physical computer is a computer hardware. Should be distinguished from data residing or operating in it, and be with the software (software) that provides instructions for the hardware in completing its tasks.

Limitation of the hardware (computer hardware) and software will be a little blurry when we speak about firmware. Because, the firmware is software that is "made" into the hardware. Firmware is the area of computer science and computer engineering, which is rarely recognized by the general user.

Computers in general consists of:

* Board system / mother board which is where the CPU, memory and other parts, and has a slot for additional card.

o RAM - short-term data storage, so the computer does not need to always access the hard disk for data. A larger amount of RAM will help speed your PC

o Buses:

+ Bus PCI

+ ISA Bus

+ USB

+ AGP

o ROM (Read Only Memory) where the firmware is placed

o CPU (Central Processing Unit) as part of the brain and the main computer

* Power supply - a box is a transformer, voltage control and fan

* Storage controllers of the type of IDE, SCSI or other, that control hard disk, floppy disk, CD-ROM and other drives; controller is located on the main board (on-board) or on expansion cards

* Control the appearance of a video that produces output for computer displays

* Computer bus controllers (parallel, serial, USB, Firewire) to connect the computer with other external additional equipment such as printers or scanners

* Some types of computer storage:

o CD - the most common type of removable media, cheap but easily broken.

+ CD-ROM

+ CD-RW

+ CD-R

o DVD

+ DVD-ROM

+ DVD-RW

+ DVD-R

o Floppy disk

* Storage in - store data in a computer for long-term use.

o Hard disk - for long-term data storage

o Disk array controller

* Sound card - translates signals from the system board to the language that can be understood by the speaker, and has a terminal for sound speaker cable.

* Network computers - to connect the computer to the Internet and / or other computers.

o Modem - for dial-up connections.

o Network card - for DSL / cable, and / or connect to another computer.

* Other Tools.

In addition, computer hardware can include other external components. Below is a standard or common components used.

* Input

o Keyboard

o Instrument pointer

+ Mouse

+ Trackball

o Joystick

o Gamepad

o Scanner picture

o Webcams

o Graphic Tablets

* Output

o Printer

o Speaker

o Monitor

* Network / Networking

o Modem

o network card

Source : Anneahira