Answers
Hold small amounts of data being worked on
Each holds 8 bits in an 8-bit processor
Works out the answer to 5 plus 2
Decodes each fetched instruction
Very fast memory locations inside the processor
Checks whether X equals Y
Receives timing signals and directs other parts
A faster clock produces more pulses every second
Temporarily store the result of 5 plus 2
Compares two values, e.g. is A greater than B
Speed measured in cycles per second
Adds, subtracts, multiplies and divides
Coordinates all activities inside the processor
Switches between 0 and 1 repeatedly
Acts like the conductor of an orchestra