Digital Electronics - Digital Concepts
Digital Electronics - Digital Concepts
2. In the decimal numbering system, what is the MSD?
- The middle digit of a stream of numbers
- The digit to the right of the decimal point
- The last digit on the right
- The digit with the most weight
3. Which of the following statements does NOT describe an advantage of digital technology?
- The values may vary over a continuous range.
- The circuits are less affected by noise.
- The operation can be programmed.
- Information storage is easy.
4. The generic array logic (GAL) device is ________.
- one-time programmable
- reprogrammable
- a CMOS device
- reprogrammable and a CMOS device
5. The range of voltages between VL(max) and VH(min) are ________.
- unknown
- unnecessary
- unacceptable
- between 2 V and 5 V
6. What is a digital-to-analog converter?
- It takes the digital information from an audio CD and converts it to a usable form.
- It allows the use of cheaper analog techniques, which are always simpler.
- It stores digital data on a hard drive.
- It converts direct current to alternating current.
7. What are the symbols used to represent digits in the binary number system?
- 0,1
- 0,1,2
- 0 through 8
- 1,2
8. A full subtracter circuit requires ________.
- two inputs and two outputs
- two inputs and three outputs
- three inputs and one output
- three inputs and two outputs
9. The output of an AND gate is LOW ________.
- all the time
- when any input is LOW
- when any input is HIGH
- when all inputs are HIGH