Lesson 3 Computer Devices.

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Presentation transcript:

Lesson 3 Computer Devices

System Unit/Case/Main Unit The main part of a personal computer. Contains electronic brain of computer System Unit: Video

Microprocessor The CPU on a single integrated circuit. CPU stands for Central Processing Unit The CPU or simply processor, is the component in a digital computer that interprets instructions and processes data contained in computer programs

Input Device Keyboard Mouse Microphone scanner A device that is used to enter data Keyboard Mouse Microphone scanner

Output Device Printers Monitors speakers A device where the computer prints or displays information for the user. Printers Monitors speakers

Storage Device A device used to save data CD USB DVD

Magnetic Storage using tape: Recording tape VHS Cassette

Optical Storage using Lasers: CD DVD

Peripheral Device Any device outside the CPU Monitor Keyboard Mouse Printer

Boot Process/Booting Up Starts operating systems when the user turns on a computer system

Hard Drive A disk drive containing a hard disk Usually the C drive

Pixels The smallest element of an image that can be individually processed in a video display system

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