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Welcome to the 8051 Microcontroller MCQs Page

Dive deep into the fascinating world of 8051 Microcontroller with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 8051 Microcontroller, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of 8051 Microcontroller, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Computer Architecture.

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Check out the MCQs below to embark on an enriching journey through 8051 Microcontroller. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Computer Architecture.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of 8051 Microcontroller. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

8051 Microcontroller MCQs | Page 12 of 14

Discuss
Answer: (c).it is active low input used to select the individual bits of the PORTC
Q112.
How many pins of the 8255 can be used as the I/O ports?
Discuss
Answer: (c).24
Discuss
Answer: (c).RTC IC
Q114.
What is the RAM space that a DS12887 have?
Discuss
Answer: (d).both of the mentioned
Q115.
How many bytes of the ROM are there for the general purpose applications?
Discuss
Answer: (b).114
Q116.
Which bits of the Register A are used for turning on the oscillator?
Discuss
Answer: (d).All of the mentioned
Discuss
Answer: (d).all of the mentioned are correct
Discuss
Answer: (a).it is a read only bit
Q119.
What is the byte address where time, calendar, alarm address locations etc are kept?
Discuss
Answer: (b).0-9
Q120.
Are the RAM locations of the DS12887 non volatile?
Discuss
Answer: (a).Yes

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