Basic Concepts基本概念 Software is instructions (computer programs)that when executed provide desired function and performance, data structures that enable the programs s to adequately manipulate information,and documents that describe the operation and use of the programs.Basic Concepts 基本概念 Software is • instructions (computer programs) that when executed provide desired function and performance, • data structures that enable the programs to adequately manipulate information, and • documents that describe the operation and use of the programs