MCQs on Digital Electronics and Systems – Microprocessors
1 - Question
An electronic component used by computers to do its work is ____
a) Microcontrollers
b) Microprocessors
c) Keyboard
d) Resistors
View Answer
Explanation: An electronic component used by computers to do its work is microprocessors. It contains millions of small components like resistors, diodes etc. The other options are not appropriate choices.
2 - Question
What is the major difference between a microprocessor and a microcontroller?
a) Presence of external peripherals
b) Presence of internal peripherals
c) CPU
d) Stack Pointer
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Explanation: RAM, ROM, EEPROM are used as an external circuit in case of the microprocessor, but these are already embedded in a microcontroller. Due to the use of external circuits microprocessors are bulkier as compared to the microcontrollers which are more compact.
3 - Question
Microprocessors have high cost and large size.
a) True
b) False
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Explanation: The microprocessors have generally large size and high cost. This is because there are several external devices attached to it according to the applications. The components used are costly as compared to the microcontrollers. advertisement
4 - Question
Which among the following are not the applications of microprocessor?
a) Word processing
b) Calculation
c) Washing machines
d) Communication
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Explanation: Washing machines generally depends on microcontrollers. The applications of a microprocessor are in communication or video display, communication via the internet, word processing, calculation and many other applications.
5 - Question
Von Neumann architecture is used in ____
a) microcontrollers
b) microprocessors
c) computer systems
d) operating Systems
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Explanation: The architecture used in the Microprocessors is Von Neumann architecture. The is single memory space for both data and the program.
6 - Question
Quartz and metals are not used in microprocessors.
a) True
b) False
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Explanation: Microprocessors are made up of various components which involve metals, quartz and various other components and chemicals. The microprocessors have generally large size and high cost.
7 - Question
Which among the following have less number of registers?
a) Microprocessors
b) Microcontrollers
c) CPU
d) Input devices
View Answer
Explanation: Microprocessors have less number of registers and therefore many of the functions are memory based whereas the microcontrollers have a number of registers and therefore the programs are easier to write.
8 - Question
In compact systems, we can use ____
a) microprocessors
b) computers
c) CPU
d) microcontrollers
View Answer
Explanation: In compact systems, we can use Microcontrollers and hence microcontrollers are more effective as compared to the microprocessors, and they are also less costly as compared to the microprocessors.
9 - Question
Harvard architecture is used in ____
a) microcontrollers
b) microprocessors
c) computer systems
d) operating Systems
View Answer
Explanation: The architecture used in the Microcontrollers is Harvard architecture. Due to this the program memory and the data memory are separate. This is one of the advantages of the microcontroller.
10 - Question
Which among the following applications are not microcontroller based?
a) Computer system
b) Washing Machines
c) MP3 players
d) Telephones
View Answer
Explanation: In Computer systems, Microprocessors are generally used. Some of the applications of a microcontroller are in washing machines, automobiles, telephones, appliances and peripherals for computer systems.