Facts about input output Essay Example | Topics and Well Written Essays - 500 words

Facts about input output - Essay Example Key board, mouse, pen drive, CD, joystick, scanner, camera, microphone, monitor, printer, speakers etc are some of the commonly used peripheral devices for inputting data and getting output from a computer system. This paper briefly analyses various aspects of inputs and outputs as far as a computer system is concerned. A computer cannot take decisions as its own. In other words, without inputs a computer cannot function properly. Inputs are necessary for a computer to act in a particular manner. It should be noted that system software helps a computer system to boot properly and open the desktop menu in front of the user. However, after booting computer needs some specific instructions to carry out different types of works. Mouse and keyboard are commonly used for inputting instructions to the computer. For example, if the user wants to prepare a document or make some calculations, he should input the data either through the keyboard or through the mouse. CPU recognizes these input data properly and process it properly. The processed data will be delivered as output either on the screen or through printers. Different serial and parallel ports are available on a computer system for connecting input and output devices. â€Å"Keyboards typically connect through a PS/2 or USB port. Many keyboards include special function keys that simplify playing music or browsing the Web. Some keyboards include a built-in USB port that can be used to connect other peripheral devices†(Computer Tips and Trix). Same way, mouse is also connected to a computer through a PS/2 or USB port. Printers, pen drives and scanners are mostly connected to the serial ports of a computer. Even though monitors were used primarily for displaying outputs in the past, at present they are used as input devices also. The arrival of touchscreens helped users to use the screens