computer

                                               COMPUTER
computer is an electronic device,without curent passing the computer can't running.
it is a portable device,now a days it is become a special parts of human life.
there are some parts of comuter which help to run computer very efficiently.some are as follows;
There is a system of input processing&output.
Input means input the data to the computer system,which gives actual meaning.so it is factful.
Some input devices are as follows;
1. mouse
2. keyboard
3. microphone
4. pendrive
processing devices is(CPU).
                                                                       THIS UNIT process the data very systematically.and ready to represent data as output
Some output devices are as follow;
• printer
• plotter
• monitor
• projector
                    this devices are used to present the result as a output.the result ought to be meaningful&factful

                                        there are three types of memory of computer system;
1. Primary memory
2. Secondary memory
3. Cache memory
                             primary memory is two types;
1. Read only memory(ROM)
2. Random Access Memory(RAM)
                                    There are three types of ROM;
1. PROM(programmeable read only memory)
2. EPROM(eraseable programmable read only memory)
3. EEPROM(electrically programmable read only memory)