Processor components 0.0 / 5 ? ComputingHardware componentsASOCR Created by: Dave1010Created on: 22-09-18 22:00 Control Unit Controls and coordinates the activities of the CPU and directs the flow of data between the CPU and other devices (e.g. I/O) 1 of 15 Bus Set of parallel wies connecting two or more components of a computer 2 of 15 Typical bus sizes 8,16,32 or 64 lines 3 of 15 system bus the data,address and control buses 4 of 15 address bus Transmits the memory address(es) of words that are used as operands in program instructions 5 of 15 data bus bi-directional path for moving data and instructions between components 6 of 15 control bus Transmits command,timing and status information between components 7 of 15 Bus request indicates that a device is requesting the use of the data bus 8 of 15 Bus grant indicates that the CPU has granted access to the data bus 9 of 15 Memory write causes data on the data bus to be written into the addressed location 10 of 15 Memory read causes data from the addressed location to be placed on the data bus 11 of 15 Interrupt request indicates that a device is requesting access to the CPU 12 of 15 clock used to synchronise operations 13 of 15 word fixed size of digits (16,32 or 64 bits) which is handled as a unit by the processor 14 of 15 operand something that an operation is done on 15 of 15
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