In general, data is any set of characters that has been gathered and translated for some purpose, usually analysis. It can be any character, including text and numbers, pictures, sound, or video. If data is not put into context, it doesn't do anything to a human or computer.
Within a computer's storage, data is a collection of numbers represented as bytes that are in turn composed of bits (binary digits) that can have the value one or zero. Data is processed by the CPU, which uses logical operations to produce new data (output) from source data (input).
Examples of computer data
Joe,Smith, 1234 Circle,SLC,UT,8404,8015553211
0143 0157 0155 0160 0165 0164 0145 0162 0040 0150 0157 0160 0145
How is data stored on a computer?
The word data is technically a plural noun, as in, "The data is being processed." The singular form of data is datum, from the Latin word meaning "something given."
While using data as a plural noun is technically correct, in modern usage, data is also accepted as a singular noun, as in, "The data is being processed."