Q12) CPU control unit. The MFC \'\'handshaking\'\' signal is sent from memory to
ID: 3760885 • Letter: Q
Question
Q12) CPU control unit. The MFC ''handshaking'' signal is sent from memory to the CPU when the memory sub-system has finished the requested operation. Why s this signal necessary? I. The memory has a variable response time. II. The RAM may be going through a refresh cycle, and so it is or has been temporarily unavailable III. If reading, it can serve as a signal that the MDR can be safely clocked and the CPU can receive the data or instruct ion. (1) I, II & III (2) I & II (3) I only (4) II only (5) None of the above Q13) Basic Operation of CPU. Examine the one- and three-bus CPUs at the end of the paper. The control unit is shown without certain vital component content. What is missing? I) The MDR 2) A high-speed loadable counter 3)The MAR 4) The PC 5) None of the above or more than one of the above Q14) Basic concepts: which of the following is/are true? I. Shifting a binary pattern one bit to the right divides the quantity by 2 II. The ALU carries out all arithmetic and logical operations. so therefore binary data must be copied into the CPU before any operation can take place III. A CPU with a 16 bit MAR implies that the system uses 65,536 virtual memory addresses 1) I & II 2) I,II & III 3) I & III 4 ) II & III 5) None of the aboveExplanation / Answer
Q12
5. None of the above
Q13
5. None of the above or more than one of the above
Q14
2. I, II & III
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