Saturday, September 13, 2008

Function of Input and output.


Basically, computer contains many electric, electronic and mechanical components known as hardware.
Hardware consists of:
1. Input devices
2.output devices
3. a system unit
4.Storage devices
5. Communication devices


Therefore, under the input devices I will explain about what are input and its functions. Firstly, what is input? Input is actually any data and instructions that entered into the memory of computer. Meanwhile, input devices is any hardware components that allows users to enter data and instructions into a computer. Eg: keyboard and mouse. So, you need to have right devices to input your data in the computers. Input consists of data- a collection of unprocessed items, which can include text, numbers, images, audio and video. Have I answered the function yet? It’s so hard to tell because the input is not something that can function but rather need something which is devices to give function. You know what I mean??

Same thing goes to output. Output is data that has been processed into a useful form aka information. Eg: display devices or printers. when you works with computer, you will encounters 4 basic categories of output :
a)Text
b)Graphics
c)Audio
d)Video


An output devices is any hardware components that conveys information to one or more people.

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