Computer Hardware

tangible (things you can touch) components of a computer system.

can use input devices to enter information and issue commands.

OUTPUT DEVICE

An output device displays information on a screen, creates printed copies or generates sound.

SYSTEM UNIT

The system unit is the part of the computer which is responsible for accepting and processing the data brought in by the input devices

type data into the computer.

input device which is commonly used for computer games

write, or issue commands when it touches a specially designed screen

view them on the computer.

Scanner

Microphone

Used to input sound into a computer

and graphics on paper

computer data on a screen or other flat surface

Multimedia Projector

Speaker

Play sounds transmitted as electrical signals from the sound card.

characters of data on a nonremovable disk

The motherboard is the main circuit board of a microcomputer. It is also known as the mainboard or system board

stands for Integrated Device Electronics. is a standard electronic interface used between a computer motherboard and the computer's disk storage devices

in sequence, to perform the basic arithmetical, logical, and input/output operations of the system

CPU

Power Supply

it supplies power from the power supply to the drive. The power cables are red, yellow and black. The yellow wire furnishes 12 volts of power, the red wire furnishes 5 volts of power, the two black wire are ground wire for each.

The main/primary memory and the secondary memory.

Memory

Primary Memory

RAM

Secondary Memory

HDD

Drive

CD/DVD Drive

is a device that reads information stored on a compact disc, it is a storage device that use laser technology to read data from optical disks.

it display capabilities.

Video Card

Sound Card

enhances the computers sound generating capabilities by allowing sound to be output through speakers.

Modem

A modem is a device that sends and receives data over telephone lines to and from computers.