Q.1
In assembly language program, one byte instruction will have ____ number of operands.
  • 1
  • 0
  • 2
  • 3
Q.2
______ is needed to convert a high level language to machine language
  • compiler
  • assembler
  • browser
  • editor
Q.3
Pin numberinmicroprocessor is
  • S0
  • S1
  • A15
  • RESET
Q.4
The cycle required to fetch and execute an instruction in amicroprocessor is which one of the following?
  • Clock cycle
  • Memory cycle
  • Machine cycle
  • Instruction cycle
Q.5
Processor status word ofmicroprocessor has five flags. They are
  • S, Z, AC, P, CY
  • S, OV, AC, P, CY
  • S, Z, OV, P, CY
  • S, Z, AC, P, OV
Q.6
In an intelmicroprocessor, why is READY signal used?
  • To indicate to user that the microprocessor is working and is ready for use.
  • To provide proper WAIT states when the microprocessor is communicating with a slow peripheral device.
  • To slow down a fast peripheral device so as to communicate at the microprocessor’s device.
  • None of the above.
Q.7
Consider the following statements:Inmicroprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?
  • (I) only
  • (II) only
  • (II) & (III)
  • (I), (II), (III)
Q.8
Consider the followingI) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flagWhich one of the above flags is/are present inmicroprocessor?
  • (I) only
  • (I) & (II)
  • (II) & (III)
  • (I) ,(III) & (IV)
Q.9
IO/M(active low) =0,S1=1,S0=1 resembles.
  • memory read
  • opcode fetch
  • memory write
  • I/O read
Q.10
Pin numberinmicroprocessor is
  • IO/M(active low)
  • RESET IN(active low)
  • READY
  • CLK
0 h : 0 m : 1 s