Computer Parts 2

Main categories of hardware for PC

input devices, output devices, system unit

input devices

things that can read information (mouses, keyboards)

output devices

things that can write information (printers, speaker)

System Unit

box that contains the motherboard, cpu, main memory, fan, hard drive, graphics card

motherboard

the circuit board that sends signals to the rest of the PC

CPU 1

the command centre, the brain of the computer (does math, comparisons, reading and writing)

CPU 2

Core i3, i9

CPU Processing

Measuring in Hz (cycles, second)
Computer processing speed is 2.5GHz