Information is any kind of event that affects the state of a dynamical system. In its most restricted technical sense, it is an ordered sequence of symbols. As a concept, however, information has many meanings.[1] Moreover, the concept of information is closely related to notions of constraint, communication, control, data, form, instruction, knowledge, meaning, mental stimulus, pattern, perception, and representation.
Information = An answer to a specific question. Whether the answer provides knowledge depends on the informed person.
Information is the amount of the data after data compression.