Definitions - 1.1 Components of a computer and their uses 3.5 / 5 based on 3 ratings ? ComputingFundamentals of computer systemsA2/A-levelOCR Created by: osymondsCreated on: 09-11-17 13:55 ALU An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. 1 of 14 Control Unit The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. 2 of 14 Registers Program Counter, Accumulator, Memory Address Register, Current Instruction Register, Memory Data Register 3 of 14 Program Counter Hold the memory address of the next instruction, increment of 1 unless a jump in the program occurs. 4 of 14 Accumulator Where intermediate arithmetic and logic results are stored 5 of 14 Memory Address Register holds the address (given from the PC) of the memory location that data and/or an instruction is to be collected from 6 of 14 Current Instruction Register Holds the current instruction being carried out 7 of 14 Memory Data Register Temporary store for data going coming from or going to a memory address 8 of 14 Data Bus The purpose of the data bus is to allow data or instructions to pass from one area to another. 9 of 14 Address Bus Allows the CPU to define where the content of the data bus is going to or coming from 10 of 14 Control Bus The CPU needs to receive and send control information between other parts of the computer 11 of 14 Pipelining Allows multiple FDE cycles to occur at the same time. (Pre-fetching Instructions) 12 of 14 Multi-core Processing Multiple CUP cores processing instructions concurrently 13 of 14 Parallel Processing Using multi-core processing or a computer network to simultaneously process actions broken down into separate chunks. 14 of 14
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