Micro-processors & Micro-controllers - MCQs with answers

Micro-processors & Micro-controllers - MCQs with answers

1. Which functioning element of microcontroller generate and transmit the address of instructions to memory through internal bus ?

a. Instruction Decoding Unit
b. Timing and Control Unit
c. Program Counter
d. Arithmetic Logic Unit

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2. How does the microcontroller communicate with the external peripherals / memory?

a. via I/O ports
b. via register arrays
c. via memory
d. all of the above

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3. Why do the microprocessors possess very few bit manipulating instructions ?

a. Because they mostly operate on bits/ word data
b. Because they mostly operate on byte/word data
c. Both a & b
d. None of the above

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4. Which minimum mode signal is used for demultiplexing the data and address lines with the assistance of an external latch in a microprocessor while accessing memory segment ?

a. INTA
b. DTE
c. HOLD
d. ALE

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