2. A modem is
a. a software that helps to open web pages on the computer.
b. a device that converts analog signals into digital signals and vice versa.
c a network similar to the Internet,
d. All are correct.
Answers
Answer:
A device that can convert digital signals to analog signals is Modem
An analog-to-digital converter, or ADC as it is more commonly called, is a device that converts analog signals into digital signals. Analog information is transmitted by modulating a continuous transmission signal by amplifying a signal's strength or varying its frequency to add or take away data.
A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem converts between these two forms.
In general terms a data converter is a device that converts analog signals to digital data or vice versa. Devices that convert analog signals to digital are frequently referred to as ADC. Devices that convert digital signals to analog are called DAC.
Analog to Digital Converter samples the analog signal on each falling or rising edge of sample clock. In each cycle, the ADC gets of the analog signal, measures and converts it into a digital value. The ADC converts the output data into a series of digital values by approximates the signal with fixed precision.
Explanation:
Answer:
A modem is a-
♦a device that converts analog signals into digital signals and vice versa.