Meaning – The word digital, refers to the data that is expressed as a series of 0 and 1. It is used to describe the electronic technology that generates, stores, and processes data in terms of two states: positive and non-positive. Here, a positive is represented by the digit 1, while the non positive is represented by the digit 0.
Before the advent of digital technology, the world relied heavily on analog technology which conveys data as electronic signals of varying frequency or amplitude that are added to carrier waves of a given frequency.
The newer communications mediums, such as satellite and sober optic transmission, make use of Digital technology.
A modem is used tot translate the digital information in your computer to analog signals for your phone line and vice versa.