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Computer Hardware

Desktop PC A flat computer that usually sits on a desk. The original design for a home computer.
Tower PC An upright computer. "desktop" is sometimes used as a name for both the flat design style and the tower design.
Monitor A specialized, high-resolution screen,that is is made up of red, green and blue dots. many times a second,your video card sends signals to your monitor which controls what dots are lit up and their brightness, which determines the picture.
Keyboard A set of keys, usually arranged in tiers, for operating a your computer.
Mouse An input device that allows the user to “point and click” or “drag and drop”.
Mother Board The main circuit board inside the computer. The big green panel that sits on the bottom of a Desktop PC or along the side of a tower.
Processor (CPU) The chip that performs the majority of calculations and instructions needed to make your computer run. The processor is attached to the motherboard. often called "brain"
Memory (RAM) (Random Access Memory) Fast computer chips that temporarily store information while a PC is in use.the computer's short-term memory used to run applications ( at least 128 megabytes of memory)
Hard Drive main storage area inside your computer (usually called a C: drive). The hard disk or hard drive stores your computer's operating system, the programs that are installed on your computer, and most of your files. (at least 20 gigabytes of memory.)
Floppy Disk A 3.5" square holding a flexible magnetic disc that holds information or data. Requires a floppy drive to read the floppy. (1.44 megabytes). it is portable and allows you to make extra copies of your files.
CD-ROM (Compact Disk Read-Only Memory) A removable disk which can store large amounts of information. Information cannot be saved to it.Requires a CD-ROM drive to read the information.(650 - 800 megabytes)
Sound Card A device that can reproduce almost any sound, including music, speech, and sound effects. A computer must contain a Sound Card in order to produce sounds. You can attach speakers and/or a microphone to the sound card.
Modem A device that translates data from your PC into a form that can be sent to other computers over regular phone lines. It receives signals from other computers and converts them into something your computer can understand. A device most home computers use t