computer instructions. A collection of instructions for a particular function is a program. A collection of programs to carry out a specific task is referred to as a package. The term software applies to applications programs, specialized system programs, or operating system utilities (which relates to operating the computer system). Software packages are available for many accounting-related applications, including bookkeeping, tax preparation and planning, management advisory services, audit, spreadsheets, data base management, preparing formal reports and documents, and practice administration (i.e., time and billing).
in a computer system, set of programs that tell the computer what to do. By contrast, the hardware is the actual physical machines that make up a computer system.
programs that tell a computer what to do. The term contrasts with hardware, which refers to the actual physical machines that make up a computer system. The hardware by itself is of little value without the instructions that tell it what to do.
Software can be classified into system software (see operating system) and application software. For examples of common types of application software, see word processing, spreadsheet, database management. For information on creating software, see programming and programming language.
computer program that controls the functions of a computer.

