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Digital Concepts

Q1:

What is a digital-to-analog converter?

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.

ANS:A - It takes the digital information from an audio CD and converts it to a usable form.

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).



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