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DFJHS Computer Tech

Computer Hardware

Mouse Input device that allows the user to manipulate objects on the screen by moving the device along the surface of a desk.
Sound Card Circuit board that gives the computer the ability to accept audio input, play sound files, and produce audio output through speakers or headphones.
System unit Case that holds the power supply, storage devices, and the circuit boards (including the motherboard).
CPU (Central Processing Unit) Where the processing in a computer takes place, often called the brain of the computer.
Input Devices Units that gather information and transform it into a series of electronic signals for the computer.
Keyboard Arrangement of letters, numbers, and special function keys that act as the primary input device to the computer.
Modem Device that sends and receives data to and from computers over telephone lines.
Output Devices Devices that display, print, or transmit the results of processing from the computer’s memory.
Monitor Display device that forms an image by converting electrical signals from the computer into points of colored light on the screen.
Resolution The density of the grid used to display or print text and graphics; the greater the horizontal and vertical density, the higher the resolution.
Pixels The smallest unit in a graphic image; computer display devices use a matrix of pixels to display text and graphics.
Storage Devices Used to keep data when the power to the computer is turned off.
Flash Drive Form of Storage Device.
Printer Output device that produces text or graphical images on paper.
Speakers Output devices that receive signals from the computer’s sound card to play music, narration, or sound effects.
Created by: toni.davis



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