Analogy & Analog

by Hla Min

Updated : May 2035

Analogy

• Comparison of two things that are similar.

Analog

• May stand for “a person or an object which may be compared to another”.
• Devices may be analog, digital or hybrid.
• An analog device uses information represented by a continuous variable.
• An analog thermometer measures temperature via the expansion of the mercury in its bulb.
• The speedometer displays the speed of a car via the needle on its dial.
• Some early computers are analog. e.g. Differential Analyzer
• The sounds produced by a musical instrument are analog.
• Analog information may be digitized by using appropriate sampling techniques.

Converter

• ADC is a tool to convert Analog to Digital.
• DAC is a tool to convert Digital to Analog.