1.1 Systems Architecture 3.0 / 5 based on 2 ratings ? ComputingComputer systemsGCSEOCR Created by: jakeisXDCreated on: 04-11-21 12:12 The brain of the computer. Central Processing Unit 1 of 15 Short-term memory storage. Random Access Memory 2 of 15 Memory that cannot be changed by a program or user. Read Only Memory 3 of 15 Takes out. Output 4 of 15 Puts in. Input 5 of 15 Retrieves a program instruction from its memory. FetchDecodeExecute 6 of 15 Used to temporarily hold instructions and data. Cache 7 of 15 Performs simple addition, subtraction, multiplication, division, and logic operations. Arithmetic Logic Unit 8 of 15 Controls all CPU operations. Control Unit 9 of 15 They are used by the processor to store small amounts of data. Register 10 of 15 Used to handle the address transferred to the memory unit. Memory Address Register 11 of 15 Contains the data to be stored in the computer storage. Memory Data Register 12 of 15 Gives an address value in the memory of where the next instruction is. Program counter 13 of 15 A register in which intermediate arithmetic logic unit results are stored. Accumulator 14 of 15 Control the device and to allow a user to interact with it. Embedded systems 15 of 15
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