Computers - Software 2.

Computers - Software 2.

Operating systems are probably the most important part of software – the user can operate a computer (and use its programs) only after an operating system has been recorded into it. The most used operating systems are produced by Microsoft Corp.:

DOS (a text operated system) and Windows 95, 98, 2000, NT, Millenium and XP (systems independent of DOS). The second biggest company Macintosh (Apple) pro- duces an operating system called Mac OS. Among other operating systems belong UNIX and Linux.

UNIX was designed to be a multitasking system - it has become an operating environment for software development, available for any type of computer.

(2) Drivers – for operating computer software it is necessary to have drivers installed into it – drivers tell the system how to cooperate with input devices such as mouse or keyboard. Nowadays most of drivers are already installed into the operating system.