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| BIOS Short for Basic Input Output System. This provides the basic instructions for a PC's hardware, and is coded into the computer's ROM (or Read Only Memory). |
CPU the central processing unit (CPU) or the processor is the portion of a computer system that carries out the instructions of a computer program. |
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| Mainboard Motherboard or mobo is a main circuit board inside a computer, which contains the central processing unit chip, the controller circuitry, the bus, and sockets for additional boards. |
Memory Random-access memory (RAM) is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order (i.e., at random). |
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| Modem Short for Modulator Demodulator. Modem is electronic device that converts electronic signals into sound waves, and sound waves into electronic signals, used to transmit information between computers. |
Monitor a display screen used to present output from a computer, allowing the user to interact with the computer, typically using the keyboard and mouse. Monitors are sometimes called displays |
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Ports |
System 1 |
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System 2 |
System 3 |
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Test Main |
Video Adapter A video card, video adapter, graphics-accelerator card, display adapter or graphics card is an expansion card whose function is to generate and output images to a display. |