CPU structure

Terms in this set (5)

ALU
the section of the processor that is involved with executing operations of an arithmetic or logical nature. it works in conjunction with the register array.
Control unit
the control unit is responsible for controlling much of the operation of the rest of the processor. it does this by issuing control signals to the other areas of the processor instructing them on what should be preformed next.
register array
this is a small amount of internal memory that is used for the quick storage and retrieval of of data and instructions. all processors include some common registers used for specific functions, namely the program counter, instruction register, accumulator, memory address register and stack pointer.
system bus
this is comprised of the control bus, data bus and address bus. it is used for the connections between the processor, memory and peripherals, and transferal of data between the various parts.
memory
the memory is not an actual part of the CPU itself and is instead housed elsewhere on the motherboard. however, it is here that the program being executed is stored, and as such a crucial point of the overall structure involved in program execution.
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