DATA

Data is come from Datum, some of complicated action that coming up from reality action. Data might from group of numbers, letters, or special symbols. Raw data still don’t have any action, so data must be processing before. Data processing is manipulation from data into better form and has more meaning, in the form of information.
Data is divided into two form :

1. Analog Data
Analog data is a data in wave form which have joining and have amplitude value and amplitude frequency.

2. Digital Data
Digital data is data with pulse character and have 1 (one) and 0 (zero) value.