INPUT AND OUTPUT

Computer process and organize data(input) into information(output).What is input and output?Input is any data and instructions entered into memory of a computer.An input device is any hardware component that allows users to enter data and instructions into a computer.There are variety of input devices.The keyboard and the mouse is two of the more used input devices.The mouse is a pointing device because it allows a user to control a pointer on the screen.There are three type of mouse that is mechanical mouse,mouse pad and optical mouse.A keyboard is an input device that contains keys users press to enter data and instructionsinto a computer.Touch screen,digital pen,RFID Reader and biometric input is examples of input devices.
Output is data that has been processed into a useful form.An output device is any hardware component that conveys information to one or more people.Output devices include display devices, printer, speaker, headphone, earphone,fax machine and fax modem and so on.A display device is an output device that visually conveys text, graphics and video information.Examples of display device is LCD monitor and screens, plasma monitor, and CRT monitors.Printers can produces text and graphics on a physical medium such as paper or transparency film.Types of printer is ink-jet printer, photo, laser, thermal, mobile, plotters and large format printer.Today,varies options of printing are available.Wireless printing technology makes the task of printing much easier.Two wireless technologies for printing are Bluetooth and infrared.It transmit output to a printer via waves.Some printers have a docking station,into which the user inserts the camera to print pictures stored in the camera.
A computer is a device that can process data into information.Data is a collection of unprocessed items,which can include text,numbers,images and video and information conveys meaning and is useful to people.