Quiz 4 EEL4709C-Computer Design PID 1. Memory references are faster than registe

Question

Quiz 4 EEL4709C-Computer Design PID 1. Memory references are faster than register references. a. True b. False 2. RAM is non-volatile. b. False a. True 3. Cache is volatile b. True b. False 4. In the case of "write through" cache write policy the main memory is updated every time the cache is written into. b. False b. False b. False a. True 6. Hardwired control computers are faster than microprogrammed control computers. a. True 7. One machine cycle is always equal to one clock cycle. 8. In general a computer with one level of cache is expected to operate faster than the computer with 9· control unit is used in x86 processors. a. True two levels of cache. a. True b. False a. Microprogrammed b. Hard wired c. DMA d. DRAM 10. What is the main function of control unit? a. It decodes the opcode. b. It causes the processor to step through a series of micro-operation in proper sequence. c. It generates the control signals. d. All of the above

Explanation / Answer

SOLUTION:-

(1):-FALSE

REASON:- Register references are faster than memory becasue Register will take minimum clock cycle to execute any instruction.

(2):-FALSE

REASON:- RAM is a volatile memory i.e. when power is off, data is lost.

(3):-TRUE

REASON:- Processor Cache is volatile and it is implemented like Static RAM.

(4):-TRUE

REASON:- Write through policy updates the main memory in order to provide the facility to recover/restore the data.

(6):-TRUE

REASON:- Hardwired control computer are faster than microprogrammed control computers because it deals operation in high speed due to presence of fixed logic circuits which are able to produce control signals via boolean functions

(7):-FALSE

REASON:- It may or may not be equal due to rely on architecture implemented by a microcontroller.

(8):-TRUE

REASON:- One Level of cache will work faster than two levels of cache due to its small size and small capacity.

(9):-(a) Microprogrammed control unit is used in x86 processors

(10):-(d) All of the above

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