Systems Architecture Review

Stores the address of the current location in RAM that is being accessed

Stores the address of the next instruction

Stores the data / instruction that has been fetched from RAM or needs to be written to RAM

Temporary store for results of calculations

Performs calculations

Performs logical operations

Controls and coordinates all the activities taking place in the CPU. Decodes and executes instructions. Runs the fetch-execute cycle.

Incremented by 1 in the fetch phase of the the FDE cycle

Stores copies of frequently used instructions from the RAM

The number of FDE cycles per second