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A computer system

1. What is an input device? Writte down which input devices you know and post an image of each one.

An input device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system (such as a computer).

Examples: Scanner

2.What is an output device? Writte down which output devices you know and post and image of each one.

An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) to the outside world.

Examples: Printer and Loudspeakers

3.What is the difference between RAM and ROM?

Random Access Memory : Type of memory where the computer guards information in order that it could be tried more rapidly. In the memory RAM there is stored all information that is being used in the moment.

Read only memory: Memory that neither can be modified does not also get lost his information on having extinguished the team.


4.What is a backing storage? Which types of backing do you know?

A computer storage device whose capacity is larger, but whose access time is slower, than that of the computer's main storage or immediate access storage; usually slower than main storage. Also know as bulk storage.

Examples:

Hard disk
USB cards and drives
CD-DVD
Tape drives