1. 1  a device, usually electronic, that processes data according to a set of instructions. The digital computer stores data in discrete units and performs arithmetical and logical operations at very high speed. ( 2 as modifier): computer technology, related prefix cyber-.
We are concerned with the analysis of data generated from an experiment. It is wise to take time and effort to organize the experiment properly to ensure that the right type of data, and enough of it, is available to answer the questions of interest as clearly and efficiently as possible.
The mathematical tools used to keep the control of an experiment in a quantitative way are called dependent and independent variables. By using both variables simultaneously, we can reach up to a conclusion in an accurate manner. Both terms, dependent and independent variables, are related with each other.