​What is computer?

It is an electronic device that stores, processes and restores data.

it can be used to do the following:
❶ Write documents. ❷ Browse the internet.
❸ Play electronic games. ❹ Create presentations.
❺ Create videos.

stote يخزن | process يعالج | restore يستعيد

• What does computer consist of?

Operating system, applications

software

• Input devices:

  keyboard, mouse, microphone, touch screen, camera, scanner.

• Output devices:

  Screen, speaker, printer, braille terminal

• CPU
  

hardware

braille terminal وحدة عرض برايل

It allows blind people to use computers.

braille terminal

• It helps non-speaking individuals use the computer.

• It changes text to speech

speach synthesizer

How can a computer help the people of determination ?

​speach synthesizer مركب الكلام

How does a computer work?

It receives data then process it. Finally, It displays the results through output devices.

❶ Using a computer usually requires: • Keyboard. • Mouse. • Touch screen. • Camera. • Microphone. • Speaker.
❷ A touch screen can be used as an input device and an out put device.
❸ The most important element of the computer system is you (user)! Why? • Because the quality of output depends on the data you entered and how well you know how to use the devices.

notes​

نفعكم الله بهذا العلم ووفقكم لما يحب ويرضى