CPU information Flashcards
control unit
Controls and co-ordinates the activities of the CPU
Arithmetic and Logic Unit (ALU)
Performs calculations
Address Bus
Internal Connection that transfers addresses of instructions between memory and processor
Data Bus
Internal Connection that transfers data between memory and processor.
Control Bus
Internal Connection that carries signals that co-ordinates activities
Accumulator
General Purpose register for storing data
Memory Address Register (MAR)
Holds the address of the instruction to be stored
Memory Data Register (MDR)
Holds data when fetched from memory
Program Counter (PC)
Holds memory address of next instruction
Current Instruction Register (CIR)
Holds the current instruction to be executed
Clock Speed
Instructions per second
Cache Size
Information inside CPU
Number of Cores
Separate CPU’s
embedded system
A device that can only perform one task, which contains a processor
