Computer Parts 2

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Computer Information System

9th

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8 Terms

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Main categories of hardware for PC
input devices, output devices, system unit
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input devices
things that can read information (mouses, keyboards)
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output devices
things that can write information (printers, speaker)
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System Unit
box that contains the motherboard, cpu, main memory, fan, hard drive, graphics card
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motherboard
the circuit board that sends signals to the rest of the PC
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CPU 1
the command centre, the brain of the computer (does math, comparisons, reading and writing)
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CPU 2
Core i3, i9
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CPU Processing
Measuring in Hz (cycles, second)
Computer processing speed is 2.5GHz