Digital refers to data technology using what?

• A. A type of analog signaling.
• B. Data technology based on continuous signals.
• C. Data technology using discrete values as opposed to continuous or analog signals.
• D. A specialized hospital software.

Answer: (C)

Digital refers to data technology using discrete values, typically represented as 0s and 1s. Unlike analog systems, which convey information with continuously varying signals, digital systems encode information in a finite set of levels, making every data point a distinct, countable value. This discreteness enables reliable storage, processing, and transmission because signals can be regenerated and errors detected or corrected more easily, and noise has less impact on the exact values. In practice, even when data travels over various media, it is converted to digital form for processing and then converted back as needed, highlighting the contrast with continuous or analog signaling. The option that describes using discrete values rather than continuous signals is the correct way to define digital data technology.