Digital Concepts Questions and Answers
Digital Concepts are foundational to modern electronics and computer architecture, making them a key area in programming questions and answers for GATE, DRDO, and ISRO aspirants. Topics include logic gates, Boolean algebra, number systems, and logic simplification techniques. Understanding digital principles helps in designing efficient digital systems and solving logic-based problems. Practicing digital concepts MCQs and test papers enhances analytical thinking and prepares students for both academic exams and technical interviews in electronics and computer engineering domains.
Digital Concepts
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93 questions
21. In positive logic, ________.
- a HIGH = 1, a LOW = 0
- a LOW = 1, a HIGH = 0
- only HIGHs are present
- only LOWs are present
22. Convert the fractional binary number 0000.1010 to decimal.
- 0.625
- 0.50
- 0.55
- 0.10
23. Digital representations of numerical values of quantities may BEST be described as having characteristics:
- that are difficult to interpret because they are continuously changing
- that vary constantly over a continuous range of values.
- that vary in constant and direct proportion to the values they represent.
- that vary in discrete steps in proportion to the values they represent.
24. A common instrument used in troubleshooting a digital circuit is a(n) ________.
- logic probe
- oscilloscope
- pulser
- all of the above
25. The parallel transmission of digital data:
- is much slower than the serial transmission of data.
- requires only one signal line between sender and receiver.
- requires as many signal lines between sender and receiver as there are data bits.
- is less expensive than the serial method of data transmission.
26. Convert the fractional decimal number 6.75 to binary.
- 0111.1100
- 0110.1010
- 0110.1100
- 0110.0110
27. What is one relative disadvantage of serial transfer?
- It requires too many conductors.
- Its interconnect system is complex.
- It is slow.
- It can only be used over very short distances.
28. Which format requires fewer conductors?
- Parallel
- Serial
- Both are the same
- Cannot tell
29. A pulse has a period of 15 ms. Its frequency is ________.
- 6.66 Hz
- 66.66 Hz
- 666.66 Hz
- 15 Hz