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Bus arbitration:
In single bus architecture when more than 1 device requests the bus, a controller known as bus arbiter decides who gets the bus; this is known as the bus arbitration.
o Each device on the bus assigned an unique identification number.
o Place their ID numbers on 4 open-collector lines.
o All components have equal responsibility in performed the arbitration process.
o A winner is chosen as a result.
Define Programmed I/O. It is the result of input and output instructions written in the computer program. Every data item transfer is initiated by an instruction in the program
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A Network uses a star topology if? A Network utilizes a star topology if all computers attach to a single central point.
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