Q.1
A stack pointer is
  • . a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
  • . a register that decodes and executes 16-bit arithmetic expression.
  • . the first memory location where a subroutine address is store
  • . a register in which flag bits are stored
Q.2
A floating point number that has a O in the MSB of mantissa is said to have
  • overflow
  • underflow
  • important number
  • undefined
Q.3
Multiprogramming of the computer system increases
  • a.memory
  • b. storage
  • c.CPU utilization
  • d.cost
Q.4
When the CPU decodes and executes an instruction and then repeats. This is called the..
  • Fetch-decode-execute cycle
  • Decode-execute-fetch- cycle
  • Execute-decode-fetch- cycle
  • Execute-fetch-process-cycle
Q.5
An address in main memory is called
  • physical address
  • logical address
  • memory address
  • word address
Q.6
The Control Unit
  • Controls the flow of data around the CPU and also decodes instructions
  • Only controls the flow of data around the CPU
  • Controls how much power is directed to all components within the computer
  • Only decodes instructions
Q.7
A device/circuit that goes through a predefined sequence of states upon the application of input pulses is called
  • register
  • flip-flop
  • transistor.
  • counter.
Q.8
Which statement best describes RAM?
  • Fast, permanent storage
  • Fast, volatile storage
  • Slow, volatile storage
  • Slow, permanent storage
Q.9
Cache memory works on the principle of
  • locality of data
  • locality of memory
  • locality of reference
  • locality of reference & memory
Q.10
What characteristic of RAM memory makes it not suitable for permanent storage?
  • too slow
  • unreliable
  • it is volatile
  • too bulky
Q.11
Which of the following memories must be refreshed many times per second?
  • (A) EPROM
  • (B)ROM
  • (C)Static RAM
  • (D)Dynamic RAM
Q.12
In computers, subtraction is generally carried out by
  • 9’s complement
  • 10’s complement
  • 1’s complement
  • 2’s complement
Q.13
Generally Dynamic RAM is used as main memory in a computer system as it
  • consumes less power
  • has higher speed
  • has lower cell density
  • needs refreshing circuitary
Q.14
MRI indicates
  • memory reference information.
  • memory reference instruction.
  • memory registers instruction.
  • memory register information
Q.15
What is the purpose of Cache?
  • Performs Arithmetic and Logical operations
  • Decodes and directs instructions to be carried out
  • Processes graphical functions
  • Stores frequently used data and instructions
Q.16
The main memory of the computer system is also called
  • a.non volatile
  • b. volatile
  • c.CPU utilization
  • d.cost
Q.17
What is the full meaning of SIMD?
  • Single Instruction Multiple Data
  • Small Instruction Multiple Data
  • Single Instruction Multiplexing Data
  • Single Instruction Multiple Digits
Q.18
What computer architecture simultaneously reads or writes data from the data memory
  • Von Neumann Architecture
  • PC Architecture
  • Storage processing Architecture
  • Harvard Architecture
Q.19
What is usually held in the contents of RAM?
  • BIOS and Boot sequence needed to start the computer
  • Software programs stored within the computer
  • Operating System and currently running programs
  • Recently executed instructions in case they are needed again
Q.20
Volatile memory that runs the Operating System and other applications
  • Virtual Memory
  • Registers
  • RAM
  • ROM
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