Operating System (OS) The Memory Buffer Register (MBR) is a hardware memory device which denotes the location of the current instruction being executed. 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 group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. is a hardware memory device which denotes the location of the current instruction being executed. 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 group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which of the following is not a video file extension? .mpeg .avi .mov .wav .mpeg .avi .mov .wav ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which of the following does not occur during the power-on-self-test (POST)? The BIOS identification process occurs The video card and video memory are tested The scan disk utility begins to run Memory chip are checked to ensure that they are working properly The BIOS identification process occurs The video card and video memory are tested The scan disk utility begins to run Memory chip are checked to ensure that they are working properly ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which of the following memory unit that processor can access more rapidly Virtual Memory Cache memory Read Only Memory Main Memory Virtual Memory Cache memory Read Only Memory Main Memory ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which policy replace a page if it is not in the favoured subset of a process's pages? Working set FIFO None of these LFU LRU Working set FIFO None of these LFU LRU ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which of the following command is used to switch between the window programs? None of these Alt+Tab Alt+F4 Ctrl+Tab None of these Alt+Tab Alt+F4 Ctrl+Tab ANSWER DOWNLOAD EXAMIANS APP
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