what is program-controlled ioin program
What is program-controlled I/O?
In program controlled I/O the processor repeatedly checks a status flags to achieve the needed synchronization among the processor and an input and output device.
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define buswhen a word of data is transferred among units all the bits are transferred in parallel over a set of lines called bus in addition to the
define synchronous bussynchronous buses are the ones in which every item is transferred during a time slotclock cycle known to both the source and
define asynchronous busasynchronous buses are the ones in which every item being transferred is accompanied by a control signal that shows its
what do you mean by memory mapped ioin memory mapped io there is no particular input or output instructions the cpu can manipulate io data residing
what is program-controlled ioin program controlled io the processor repeatedly checks a status flags to achieve the needed synchronization among the
define interruptan interrupt is any exceptional event that causes a cpuu to temporarily transfer control from its present program to another program
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