Microprocessors and Microcontrollers (3160914) MCQs

MCQs of Microprocessor Based System

Showing 1 to 10 out of 20 Questions
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1.

 A microcontroller at-least should consist of:

(a)

 RAM, ROM, I/O ports and timers
(b)

CPU, RAM, I/O ports and timers
(c)

CPU, RAM, ROM, I/O ports and timers
(d)

CPU, ROM, I/O ports and timers
Answer:

Option (c)

2.

Unlike microprocessors, microcontrollers make use of batteries because they have:

(a)

high power dissipation
(b)

low power consumption
(c)

low voltage consumption
(d)

low current consumption
Answer:

Option (b)

3.

What is the order decided by a processor or the CPU of a controller to execute an instruction?

(a)

decode,fetch,execute
(b)

execute,fetch,decode
(c)

fetch,execute,decode
(d)

 fetch,decode,execute
Answer:

Option (d)

4.

 If we say microcontroller is 8-bit then here 8-bit denotes size of:

(a)

Data Bus
(b)

 ALU
(c)

Control Bus
(d)

Address Bus
Answer:

Option (b)

5.

How are the performance and the computer capability affected by increasing its internal bus width?

(a)

it increases and turns better
(b)

it decreases
(c)

 remains the same
(d)

 internal bus width doesn’t affect the performance in any way
Answer:

Option (a)

6.

 Abbreviate CISC and RISC.

(a)

 Complete Instruction Set Computer, Reduced Instruction Set Computer
(b)

 Complex Instruction Set Computer, Reduced Instruction Set Computer
(c)

 Complex Instruction Set Computer, Reliable Instruction Set Computer
(d)

Complete Instruction Set Computer, Reliable Instruction Set Computer
Answer:

Option (b)

7.

 Give the names of the buses present in a controller for transferring data from one place to another?

(a)

 data bus, address bus
(b)

data bus
(c)

 data bus, address bus, control bus
(d)

address bus
Answer:

Option (c)

8.

 What is the file extension that is loaded in a microcontroller for executing any instruction?

(a)

 .doc
(b)

.c
(c)

 .txt
(d)

.hex
Answer:

Option (d)

9.

 What is the most appropriate criterion for choosing the right microcontroller of our choice?

(a)

 speed
(b)

availability
(c)

ease with the product
(d)

 all of the mentioned
Answer:

Option (d)

10.

 Why microcontrollers are not called general purpose computers?

(a)

because they have built in RAM and ROM
(b)

because they design to perform dedicated task
(c)

 because they are cheap
(d)

because they consume low power
Answer:

Option (b)

Showing 1 to 10 out of 20 Questions
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