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Answer:

Analog.

An LP has a spiral groove on the vinyl that continuously follows the same shape as an audio signal.


Binary

Binary means "two states." The two states are sometimes called "1" and "0", or called "true" and "false", or called "on" and "off", (or other names.) The essential characteristic is that a single binary device can be in just one of two possible states.

A bit is a single on/off value.

A good example is a toggle switch, such as a light switch. You can turn it on or off but not (in normal operation) anything else. A light switch holds one bit of information.

A light dimmer is not a binary device: it has many positions between off and fully on. If you want a light dimmer to be set to 25%, you must carefully adjust it.


QUESTION 2:

Which of the following is a binary device:


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