Top 80+ Solved Microprocessor and Interfacing Technique MCQ Questions Answer

From 46 to 60 of 90

Q. The register which contains the data to be written into or read out of the addressed location is called

a. memory address register

b. memory data register

c. program counter

d. index register

  • b. memory data register

Q. The register used as a working area in CPU is

a. program counter

b. instruction register

c. instruction decoder

d. accumulator

  • d. accumulator

Q. The device which is used to connect a peripheral to bus is called

a. control register

b. interface

c. communicatio n protocol

d. none of these

  • b. interface

Q. Which of the following is a set of general purpose internal registers ?

a. stack

b. scratch pad

c. address register

d. status register

  • b. scratch pad

Q. Which of the following register is used in the control unit of the CPU to indicate the next instruction which is to be executed ?

a. accumulator

b. index register

c. instruction decoder

d. program counter

  • d. program counter

Q. Which of the following is not typically found in the status register of a micro processor ?

a. overlow

b. zero result

c. negative result

d. none of the above

  • d. none of the above

Q. The register which keeps track of the execution of a program and which contains the memory address of the instruction currently being executed is called

a. index register

b. memory address register

c. program counter

d. instruction register

  • d. instruction register

Q. Which of the following register holds the information before going to the memory ?

a. control register

b. data register

c. accumulator

d. address register

  • b. data register

Q. Which of the following register is used in the control unit of the CPU to indicate the next instruction which is to be executed

a. accumulator

b. index register

c. instruction decoder

d. program counter

  • d. program counter

Q. In 8086 the following has the higest priority among all the interrupts

a. nmi

b. div o

c. type 255

d. over flow

  • a. nmi

Q. A set of register which contain

a. data

b. memoryaddresses

c. result

d. all of these

  • d. all of these

Q. PC stands for:

a. program counter

b. points counter

c. paragraph counter

d. paint counter

  • a. program counter

Q. SP stands for:

a. status pointer

b. stack pointer

c. a and b

d. none of these

  • b. stack pointer

Q. Causing a flag to became 0 is called:

a. clearing a flag

b. case a flag

c. both a and b

d. none of these

  • a. clearing a flag
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