Computer software &


An outline (algorithm) for what would have been the first piece of software was written by Ada Lovelace in the 19th century, for the planned Analytical Engine. However, neither the Analytical Engine nor any software for it were ever created.

The first theory about software—prior to creation of computers as we know them today—was proposed by Alan Turing in his 1935 essay On Computable Numbers, with an Application to the Entscheidungsproblem (decision problem).


software, is a part of a computer system that consists of data or computer instructions, in contrast to the physical hardware from which the system is built.
In computer science and software engineering, computer software is all information processed by computer systems, programs and data.
Computer software includes computer programs, libraries and related non-executable data, such as online documentation or digital media.