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
31. The rise time is the time it takes a pulse to go from ________.
- the base line to the maximum HIGH voltage
- 10% of the pulse amplitude to the maximum HIGH voltage
- the base line to 90% of the pulse amplitude
- 10% of the pulse amplitude to 90% of the pulse amplitude
32. What is an analog-to-digital converter?
- It makes digital signals.
- It takes analog signals and puts them in digital format.
- It allows the use of digital signals in everyday life.
- It stores information on a CD.
33. A multiplexer has ________.
- one input and several outputs
- one input and one output
- several inputs and several outputs
- several inputs and one output
35. An encoder converts ________.
- noncoded information into coded form
- coded information into noncoded form
- HIGHs to LOWs
- LOWs to HIGHs
36. What kind of logic device or circuit is used to store information?
- Counter
- Register
- Inverter
- Buffer
37. PLCC packages have leads on ________.
- one side
- two sides
- three sides
- four sides
38. What is the typical invalid voltage for a binary signal?
- 0.7–2.8 volts
- 0.8–3 volts
- 0.8–2 volts
- 0.7–2.5 volts
39. Convert the fractional binary number 0001.0010 to decimal.
- 1.40
- 1.125
- 1.20
- 1.80
40. Convert the fractional binary number 10010.0100 to decimal.
- 24.50
- 18.25
- 18.40
- 16.25