Computer Science

Q.46   Translation from symbolic program into Binary is done in
   (A) Two passes.    (B) Directly
   (C) Three passes.  (D) Four passes.
   
   Ans: A
 
Q.47   A floating point number that has a O in the MSB of mantissa is said to have
   (A) Overflow          (B) Underflow
   (C) Important number  (D) Undefined
 
   Ans: B
 
Q.48   The BSA instruction is  
(A) Branch and store accumulator
(B) Branch and save return address
(C) Branch and shift address
(D) Branch and show accumulator
 
   Ans: B
 
Q.49   State whether True or False.

(i)  Arithmetic operations with fixed point numbers take longer time for execution  as compared to with floating point numbers.
Ans: True.
 
(ii)  An arithmetic shift left multiplies a signed binary number by 2.
Ans: False.
 
Q.50   Logic gates with a set of input and outputs is arrangement of  
   (A) Combinational circuit  (B) Logic circuit
   (C) Design circuits        (D) Register
 
   Ans: A
 
Q.51   MIMD stands for
(A) Multiple instruction multiple data
(B) Multiple instruction memory data
(C) Memory instruction multiple data
(D) Multiple information memory data
 
  Ans: A
 
Q.52   A k-bit field can specify any one of  
^= Raised to
   (A) 3^k  registers  (B) 2^k registers
   (C) K^2  registers  (D) K^3 registers
   
   Ans: B
 
Q.53   The time interval between adjacent bits is called the  
   (A) Word-time         (B) Bit-time
   (C) Turn around time  (D) Slice time
   
   Ans: B
 
Q.54   A group of bits that tell the computer to perform a specific operation is known as
   (A) Instruction code  (B) Micro-operation
   (C) Accumulator       (D) Register
 
   Ans: A
 
Q.55   The load instruction is mostly used to designate a transfer from memory to a processor register known as
   (A) Accumulator      (B) Instruction Register
   (C) Program counter  (D) Memory address Register
 
   Ans: A
 
Q.56   The communication between the components in a microcomputer takes place via the address and  
   (A) I/O bus      (B) Data bus
   (C) Address bus  (D) Control lines
 
   Ans: B
 
Q.57   An instruction pipeline can be implemented by means of  
   (A) LIFO buffer  (B) FIFO buffer
   (C) Stack         (D) None of the above
 
   Ans: B
 
Q.58   Data input command is just the opposite of a
   (A) Test command  (B) Control command
   (C) Data output   (D) Data channel
 
   Ans: C
 
Q.59   A microprogram sequencer
 (A)  generates the address of next micro instruction to be executed.
 (B)  generates the control signals to execute a microinstruction.
 (C)  sequentially averages all microinstructions in the control memory.
 (D)  enables the efficient handling of a micro program subroutine.
 
   Ans: A
 
Q.60   A binary digit is called a
   (A) Bit     (B) Byte
   (C) Number  (D) Character
 
   Ans: A