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DMA controllers in computer system:
INTERFACE CIRCUITS
o Provides a storage buffer for at least one word of data.
o Circuitry required connecting an I/O device to a computer bus
o Contains address-decoding circuitry
o Contains status flag that can be accessed by the processor.
o Generates the appropriate timing signals required by the bus control scheme.
o Performs format conversions
o Ports
o Parallel port
o Serial port
Keyboard to processor connection
Instruction level This is the initial level and the degree of parallelism is uppermost at this level. The fine grain size is used at statement or instruction level as only few
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A computer system that allows multiple users to run programs at similar time Multi tasking system
what is cardinality ratio?
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