Generally, software is a computer program that runs on a computer. This can be either a compiled or an interpreted program. The latter can be written in a programming language such as C or C++.
Most software can be purchased from a retailer or downloaded over the Internet. Some software may be free, while others may be chargeable. Software licenses may also restrict the distribution or use of the software.
Software is typically divided into two types: application software and system software. Applications perform specific functions for the end user, while system software coordinates the operation of the computer.
Software is used to perform a number of tasks, such as storing data, formatting data, and sending or receiving emails. It can also protect against unauthorized access to data. It can be used to protect against malware and viruses.
Software can also be classified according to their functionality and scalability. Some of the most popular applications include word processors, web browsers, and games.
Software may be sold as standalone programs, or it may come in a box with instructions and disks. It may also come with an access card. A person may follow the instructions on the card to perform the desired operation.