The Basics of a Computer- what are the Basic needs of Computer- What are the Basic of a Computer- Defination of a Computer

Ø  Basics of a Computer:-

A computer consist of everel  parts working together. Some of this parts are essential for the working of the computer other make working on a computer more pleasant and efficient.

                         The basic computer of a computer are:-

i.                     Monitor,

ii.                   Keyboard,

iii.                  Mouse,

iv.                 System unit

                The optional components are:- printer, scanner, CD/DVD Drive, pen drive etc.

Note:- the parts like monitor, keyboard, printer, mouse etc. are connected to the system unit are called peri pherals.

ü  Working of a Computer:-

The computer follows the basic principal of the (I-P-C) Input –process – output cycle. Input refers to the  data or to the instructions which were given to the computer.

Output refers  to the results given by the computer, process, refers to the works done by the computer to obtain the output. The flowing examples would help in understanding the I—O cycle. Consider a very simple real life example inrieints making coffee. The in gerent coffee power, water, sugar and milk are the inputs the process is billing and the out put is coffee.  

Input Coffee powder

                  

    

Process Boiling

               

 

Output Coffee

Figure:- I-P-O cycle of making coffee.

                The computer also follows the same I-P-O cycle.

INPUT 5.6 PROCCES 5*6 OUTPUT 30

Figure:- The I-P-O cycle.

For example suppose you want the computer to do simple calculation like multiplaying 5 and 6. You maust provide the input that is the data and the instruction. Here 5 and 6 are the data multiplication is the instruction, then the computer process the data. Using yhe instruction given to it and arrives at the result. In this case, the result of 5*6 is 30. Means 30 is the output.

                The device use to give inputis called the input device. The device used to do the processing is called the pro using devise the and the devise used to give the output is called the output. Device . data and instructions can be given to a computer with the help of a key board and mouse are input devise. The system unit is used for processing the input. Any pro cused data gets displayed on the monitor and this information can also be printed on a paper usinf the printer, hence, monitor and printer are output devise.