Input is data or instruction entered into the memory of computer.input device is hardware compenant that allows users to enter data and instructions.example of input device is keyboard, mouse, touchpad, lightpen, touch screen, etc.input device that contains key users press to enter data into a computer,keyboard.Mouse is a pointing device that fits under the palm of your hand.Touchpad is small ,flat, rectangular pointing device sensitive to pressure.Lightpen is handheld input device that can detect the pressence of light.touch screen is touch areas of screen with finger often use with kiosks.voice input entering input by speaking into a microphone audio input and entering sounds into a computer - speech,music, and sound effects. Video input is a process of capturing full-motion images and storing them on a computer’s storage medium.
Output is a data that has been processed into a useful form. Output device is any hardware component that can convey information to one or more people. Printer is are output device that visually conveys text, graphics, and video information. It typically used with desktop computers. Monitor houses display device as separate periphera example LCD monitor, uses liquid crystal display have a small footprint. Mobile devices that contain LCD displays include the notebook computer, tablet PC, ultra personal computer, portable media player, smart phone, and PDA. Audio output device that is computer component that produces music, speech, or other sounds like speakers, earphones, and earbuds are common devices. Computer talks to you through speakers on computer and internet telephony allows you to have conversationover the internet.
