Computer Science

Q.61   A flip-flop is a binary cell capable of storing information of  
   (A) One bit   (B) Byte
   (C) Zero bit  (D) Eight bit
 
   Ans: A
 
Q.62   The operation executed on data stored in registers is called
   (A) Macro-operation  (B) Micro-operation
   (C) Bit-operation    (D) Byte-operation
 
   Ans: B
 
Q.63   MRI indicates
(A) Memory Reference Information.
(B) Memory Reference Instruction.
(C) Memory Registers Instruction.
(D) Memory Register information
 
   Ans: B
 
Q.64   Self-contained sequence of instructions that performs a given computational task is called  
   (A) Function  (B) Procedure
   (C) Subroutine  (D) Routine
 
   Ans: A
 
Q.65   Microinstructions are stored in control memory groups, with each group specifying a
   (A) Routine  (B) Subroutine
   (C) Vector   (D) Address
 
   Ans: A
 
Q.66  An interface that provides a method for transferring binary information between internal storage and external devices is called
   (A) I/O interface     (B) Input interface
   (C) Output interface  (D) I/O bus
 
  Ans: A
 
Q.67  Status bit is also called
   (A) Binary bit  (B) Flag bit
   (C) Signed bit  (D) Unsigned bit
 
  Ans: B
 
Q.68  An address in main memory is called
  (A) Physical address  (B) Logical address
  (C) Memory address  (D) Word address
 
  Ans: A
 
Q.69   If the value V(x) of the target operand is contained in the address field itself, the addressing mode is
 (A) immediate.  (B)  direct.
 (C) indirect.   (D)  implied.
 
 Ans: B
 
Q.70 (-27)_10 can be represented in a signed magnitude format and in a 1’s complement format as
_=Base
 (A)   111011 & 100100   (B)  100100 &  111011
 (C)   011011 & 100100   (D)  100100 & 011011
 
 Ans: A
              
Q.71  The instructions which copy information from one location to another either in the processor’s internal register set or in the external main memory are called
 (A)    Data transfer instructions.  (B)    Program control instructions.
 (C)    Input-output instructions.   (D)    Logical instructions.
 
 Ans: A
                                                                               
Q.72   A device/circuit that goes through a predefined sequence of states upon the application of input pulses is called
 (A) register      (B) flip-flop
 (C) transistor.   (D) counter.
 
 Ans: D
 
Q.73  The performance of cache memory is frequently measured in terms of a quantity called  
   (A) Miss ratio.      (B) Hit ratio.
   (C) Latency ratio.   (D) Read ratio.
 Ans: C
 
Q.74 The information available in a state table may be represented graphically in a  
 (A) simple diagram.    (B) state diagram.
 (C) complex diagram.   (D) data flow diagram.
 Ans: B
 
Q.75  Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called.
   (A) relative address mode.   (B) index addressing mode.
   (C) register mode.           (D) implied mode.  
   
Ans: A