Analogue is that which is represented by a continuous value, such as a line; in programmer's parlance, that which is not digital, that is, represented by ones and zeros.

Analogue media include(d) printed books, cellulose camera and cinematographic film, older phones and television broadcast techniques. They could often achieve high reproduction standards, but suffered problems with expense of reproduction, physical deterioration, needs of large space for storage of data and loss of data through sheer disorganisation.