Operating System (OS) The term 'polling' in a computer means a process by which a computer system inquires to see if a terminal has any transaction to send decides correct alternative by analysing several ones detects/corrects errors None of these multiplexes the inputs and updates the memory accordingly inquires to see if a terminal has any transaction to send decides correct alternative by analysing several ones detects/corrects errors None of these multiplexes the inputs and updates the memory accordingly ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The Memory Buffer Register (MBR) contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write". is a hardware memory device which denotes the location of the current instruction being executed. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. contains the address of the memory location that is to be read from or stored into. None of these contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write". is a hardware memory device which denotes the location of the current instruction being executed. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. contains the address of the memory location that is to be read from or stored into. None of these ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which components appear in the initial windows start up display? Dialog box Start menu All of these Task bar Dialog box Start menu All of these Task bar ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) In Microsoft windows, the graphical pattern on the desktop used as background for windows is Wall paper Background Icons Picture Wall paper Background Icons Picture ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Under multiprogramming, turnaround time for short jobs is usually _____ and that for long jobs is slightly _____. None of these lengthened; lengthened shortened; shortened shortened; lengthened lengthened; shortened None of these lengthened; lengthened shortened; shortened shortened; lengthened lengthened; shortened ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) A task in a blocked state None of these must still be placed in the run queues is running is executable is waiting for same temporarily unavailable resources None of these must still be placed in the run queues is running is executable is waiting for same temporarily unavailable resources ANSWER DOWNLOAD EXAMIANS APP
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