Digital Electronics-Logic Gates
Digital Electronics-Logic Gates
42. The basic logic gate whose output is the complement of the input is the:
- OR gate
- AND gate
- inverter
- comparator
43. When reading a Boolean expression, what does the word "NOT" indicate?
- the same as
- inversion
- high
- low
44. The output of an exclusive-NOR gate is HIGH if ________.
- the inputs are equal
- one input is HIGH, and the other input is LOW
- the inputs are unequal
- none of the above
46. Which of the following equations would accurately describe a four-input OR gate when A = 1, B = 1, C = 0, and D = 0?
- 1 + 1 + 0 + 0 = 01
- 1 + 1 + 0 + 0 = 1
- 1 + 1 + 0 + 0 = 0
- 1 + 1 + 0 + 0 = 00
47. What is the name of a digital circuit that produces several repetitive digital waveforms?
- an inverter
- an OR gate
- a Johnson shift counter
- an AND gate
48. The basic types of programmable arrays are made up of ________.
- AND gates
- OR gates
- NAND and NOR gates
- AND gates and OR gates
49. The logic gate that will have HIGH or "1" at its output when any one (or more) of its inputs is HIGH is a(n):
- OR gate
- AND gate
- NOR gate
- NOT operation
50. CMOS IC packages are available in ________.
- DIP configuration
- SOIC configuration
- DIP and SOIC configurations
- neither DIP nor SOIC configurations