computer program

logical sequence of operations to be performed by an electronic computer

A computer program is one or more instructions that are intended for execution by a computer. Specifically, it is a symbol or combination of symbols forming an algorithm that may or may not terminate, and that algorithm is written in a programming language. Computer programs range from low-level assembly languages, where the algorithm is minutely dictated; through imperative languages, where the algorithm is apparent; to high-level declarative languages, where the algorithm is hidden in a black box.
See more at Wikipedia.org...

See program.

software

A set of statements or instructions to be used directly or indirectly in a computer in order to bring about a certain result. 17 USC