Computer software programs tell the computer what to do. They are divided into two general areas:
Operating systems software
An operating system is a series of programs that organise and control a computer. The computer will not work without it. Most PCs use an operating system called Microsoft Windows
Application packages are available for specific tasks. The user decides which they want on their computer. The most commonly-used applications on a PC are Word Processing, Spreadsheets, Databases and Internet/e-mail software.