Which device send information to the CPU?

Answer 1

Informations from user to a computer can be send using:

• a keyboard (typing commands),
• a mouse (clicking on icons or links),
• a web camera (image sent via a communication software to other people or simply written as a file on a hard disk),
• a scanner (picture scanned and sent to a picture album)
• a microphone (voice recorded to a file or sent via a communication software to other people),
• other input devices also can be used.

Answer 2

The Central Processing Unit (CPU), or processor, is a component that acts as the brain of a computer system. Instead of actually thinking, however, it moves data around the system in ways defined by computer programmers. A CPU essentially performs three basic functions. It accepts input, processes data, and provides output. These are critically important to the operation of any computer system.

Input is the process by which external data is entered into a computer. It is mainly provided by common input devices, such as a keyboard, mouse, scanner, or modem. Once the computer analyzes the input, that data is then processed and converted into output.

Output is the end result of the processed data input into the computer system. It refers to a process by which the CPU sends data to installed devices, such as a monitor, printer, or even a running computer program. The output data can either be stored temporarily or permanently, meaning the computer must have a way to contain this data while processing is being performed.

Answer 3

a input device