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
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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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