Modem is only used to convert digital signals into analog signals and transmit them on the line.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- Modem is only used to convert digital signals into analog signals and transmit them on the line. A: 正确 B: 错误
- A voltage comparator can convert analog signals into digital signals. A: Correct B: Wrong
- 4. What are the advantages of digital signals, comparedwith analog signals?
- Audio card can convert analog audio signals to digital form which can be stored as a computer audio file.
- The A/D converter is used to convert the analog signals to digital signals. For an 8-bit A/D converter with a conversion speed of 1 ms and an analog input range of 0-5V, if a 3.3V analog signal is inputted, the digital signal output should be: A: 168 B: 3.3 C: 168.9 D: 3