Digital devices are ___________.

Digital Clock: To keep time, digital clocks typically use an AC oscillator of 50 or 60 hertz or a 32,768 hertz crystal oscillator like a quartz clock. Many digital watches, for example, may be converted between 12-hour and 24-hour modes.

Automobile speed meter: D.E Protzmann and others filed the first patent for a digital alarm clock on October 23, 1956, in the United States. In 1970, Protzmann and his collaborators patented another digital clock with a low number of moving parts.

Clock with a dial and two hands: All data processed by a computer must be digitally encoded as a series of zeros and ones. Analog is the polar opposite of digital. A clock, for example, is an analog instrument in which the hands move constantly across the face. Most analog events, on the other hand, can be digitally replicated.

Hence, option A is the correct answer i.e. All of them.