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__Understanding Digital__

**Variation A**

A way of transmitting or storing data
using

"on" and "off" bits, expressed as "1" or "0."

**Variation B**

Defines any system based on discontinuous

data or events. Computers are digital machines

because at their most basic level they can

distinguish between just two values, "0" and "1",

or "off" and "on". There is no easy way to

represent all the values in between, such as 0.45.

All data that a computer processes must be encoded

digitally, as a series of zeroes and ones.

**Variation C**

A description of data which is retained or transmitted

as a sequence of discrete symbols from a finite

set, most commonly this means binary data

represented using electronic or electromagnetic

signals. The antonym is analogue.

**Variation D**

Representing or operating on data or information

in numerical form.

**Variation E**

Of or relating to a device that can read, write,

or retain information that is represented in

numerical form.

**Variation F**

Involving or using numerical digits expressed

in a scale of notation to represent discretely all

variables occurring in a problem.