Why, even modern traffic lights operate with computers. They are all around us. The Four Operations Of a Computer System Input Home computers are microcomputers. Input is supplied to the microcomputer with the use of a keyboard, a mouse, or another input device. These input devices may be called peripheral devices .
Processing is the conversion of input to output.
Storage Storage refers to holding information somewhere. RAM, Random Access Memory, is short-term memory. The RAM memory is located inside the computer case on the motherboard. A motherboard is not the keyboard. The keyboard is what you type with.