Sunday, September 21, 2008

INPUT AND OUTPUT
Input by definition is instructions and any data entered into the memory of a computer. Therefore there are also input devices. The examples of input devices such as keyboard, mouse and also touch screen. Magnetic stripe card reader is also include as input device. Magnetic stripe card reader is such as visa card and bank card.

Beside that there are biometric input. Examples are fingerprints, and iris recognitions.Beside input, there also output. Output by definition is data has been process into a useful form.Output also same goes to input, because it also have device as well. It is any of hardware component that conveys information to once or more people. Its comes in four categories of output. It is was called text, audio, graphic, and video.

Therefore there are other type of input such as voice input, audio input ,and video input. Voice input by definition is process of entering output by speaking into a microphone, include instant messaging that supports voice conversations, chat rooms that support voice chat, internet telephony, and voice recognition (speech recognition) which computer’s capability of distinguishing spoken words. Then the definition of audio input is process of entering any sound into the computer such as speech, music and sound effect. By the way, the definition of video output is he process of capturing full-motion images and storing them on a computer’s storage medium such as an hard disk or DVD.Keyboard or mouse are input, and mouse is as pointing devices that’s because allow a user to control a pointer at the screen. It is a small symbol on the screen whose location and shape change as a user move a pointing device.

No comments: