Computer Organization & Architecture MCQs SET-2

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Computer Organization & Architecture MCQs

 

Q.21 Dynamic RAM consumes ——–power and ——– then the static ram ?





ANSWER= (C) Less,slower

 

Q.22 Which flog of the 8085 flag register is not accessible to programmer directly ?





ANSWER= (C) Auxiliary carry flag

 

Q.23 Cache memory work on the princple of ?





ANSWER= (A) Locality of refrence

 

Q.24 Which of the memory holds the information when the power supply is switched off?





ANSWER= (C) EEROM

 

Q.25 Which of the following interrupt is markable?





ANSWER= (B) RST7.5

 

Q.26 Cycle stealing technic is used in?





ANSWER= (B) DMA based data transfer

 

Q.27 Which of the following is not a characteristic





ANSWER= (A) Large instruction set

 

Q.28 Associative memory is some time called as?





ANSWER= (A) Content addressable memory

 

Q.29 Floating point representation is used to store





ANSWER= (C) Real numbers

 

Q.30 What characteristic of RAM memory makes it not suitable for permanent storage ?





ANSWER= (D) Unreliable

 

Q.31 An instruction code is ?





ANSWER= (A) A group of bits that instruct the computer to perform specific operation

 

Q.32 The program counter holds the address of





ANSWER= (B) The next instruction to be read from memory

 

Q.33 The function of the control unit in digital computer is?





ANSWER= (A) To initiate sequence of micro operation

 

Q.34 A memory that is the part of a control unit is know as ?





ANSWER= (D) Control memory

 

Q.35 A group of eight is known as ?





ANSWER= (B) A byte

 

Q.36 The tendency of a processor to access the same set of memory loacations repetively over a short period of time is known as?





ANSWER= (B) Locality of reference

 

Q.37 The CPU state is saved in the event of a transfer control





ANSWER= (C) During execution of an instruction due to an interrupt cycle

 

Q.38 A computer use RAM chips of 1024*1 capacity,How many chips are needed to provide a memory capacity of 16 k bytes





ANSWER= (B) 32

 

Q.39 The instruction that does not need any address field is ?





ANSWER= (D) Zero address instruction

 

Q.40 Booth,algorithm is used for ?





ANSWER= (A) Multiplication

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