Hardware
The physical units that make up a computer system
CPU
Controls data transmission, processing and information output
Main Memory
Holds instructions and data
Binary Digit
bits, which can be grouped together in groups of 8 bytes, with 2^8 combinations
1 byte = 1 character
RAM
Volatile, and stores programs which are currently running and data being processed
ROM
Non-Volatile, holds the bootstrap loader to load operating system from memory
Cache
Very fast memory which improves the computer's speed, storing most frequent and recent files for quick retreval
Peripheral
A device which is external to the CPU
Auxiliary Storage
Non volatile storage required by computer systems to store data and programs
Input Device
Used to input DATA
Output Device
Used to output INFORMATION
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