click below
click below
Normal Size Small Size show me how
DFJHS Computer Tech
Computer Hardware
Question | Answer |
---|---|
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. |