(a) It takes the digital information from an audio CD and converts it to a usable form. (b) It allows the use of cheaper analog techniques, which are always simpler. (c) It stores digital data on a hard drive. (d) It converts direct current to alternating current.
Answer : (a)
Explanation : A DAC converts an abstract finite-precision number (usually a fixed-point binary number) into a concrete physical quantity (e.g., a voltage or a pressure).
555555555552. What is an analog-to-digital converter? (a) It makes digital signals. (b) It takes analog signals and puts them in digital format. (c) It allows the use of digital signals in everyday life. (d) It stores information on a CD.