Computer Organization and Architecture Mcqs

Page No. 14

The reserved memory or private space of the subroutine gets deallocated when _______


aThe stop instruction is executed by the routine


bThe pointer reaches the end of the space


cWhen the routine’s return statement is executed


dNone of the mentioned



______ pointer is used to point to parameters passed or local parameters of the subroutine.


aStack pointer


bFrame pointer


cParameter register


dLog register


View Answer Frame pointer

If the subroutine exceeds the private space allocated to it then the values are pushed onto _________


aStack


bSystem heap


cReserve Space


dStack frame


View Answer Stack

The private work space dedicated to a subroutine is called as ________


aSystem heap


bReserve


cStack frame


dAllocation


View Answer Stack frame

The process wherein the processor constantly checks the status flags is called as ___________


aPolling


b Inspection


cReviewing


dEchoing


View Answer Polling

The method which offers higher speeds of I/O transfers is ___________


anterrupts


bMemory mapping


cProgram-controlled I/O


dDMA


View Answer DMA

The method of synchronising the processor with the I/O device in which the device sends a signal when it is ready is?


aExceptions


bSignal handling


cnterrupts


dDMA


View Answer nterrupts

The method of accessing the I/O devices by repeatedly checking the status flags is ___________


aProgram-controlled I/O


bMemory-mapped I/O


cI/O mapped


dNone of the mentioned



To overcome the lag in the operating speeds of the I/O device and the processor we use ___________


aBUffer spaces


bStatus flags


cInterrupt signals


dExceptions


View Answer Status flags

The system is notified of a read or write operation by ___________


appending an extra bit of the address


bEnabling the read or write bits of the devices


cRaising an appropriate interrupt signal


dSending a special signal along the BUS



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