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Welcome to the 8085 Microprocessor MCQs Page

Dive deep into the fascinating world of 8085 Microprocessor with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 8085 Microprocessor, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of 8085 Microprocessor, 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 8085 Microprocessor. 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 8085 Microprocessor. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

8085 Microprocessor MCQs | Page 2 of 3

Q11.
When we use RRC instruction once in 8085, the number is
Discuss
Answer: (b).divided by 2
Discuss
Answer: (a).operation code, low order byte of data/address and high order byte of data / address
Q13.
In 8085 microprocessor, which of the following is not vectored interrupt?
Discuss
Answer: (d).INTR
Q14.
How many input-output ports can be accessed by direct method of 8085 microprocessor?
Discuss
Answer: (b).256
Q15.
When was the first 8-bit microprocessor introduced?
Discuss
Answer: (b).1974
Q16.
Which of the following buses does not exist in 8085?
Discuss
Answer: (d).Exchange bus
Q17.
In 8085 microprocessor, what is the length of SP (stack) pointer?
Discuss
Answer: (d).16 bits
Q18.
Which of the following instructions in 8085 does not belong to data transfer group?
Discuss
Answer: (d).ADC M
Q19.
Consider the following statements about 8085

The instruction LDA uses direct addressing mode.
The instruction MVI uses direct addressing mode.
The instruction MVI uses immediate addressing mode.
The instruction LDA uses immediate addressing mode.
Which of the above are correct?
Discuss
Answer: (a).1 and 3 only
Discuss
Answer: (c).8-bit parallel CPU
Page 2 of 3

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