Windows 3.0 is an operating system released by Microsoft in 1990 as the successor to Windows 2. It featured a redesigned user interface, introducing the Program Manager, File Manager and Control Panel. Windows 3.0 was designed to provide backwards compatibility with Windows 2.
Windows 3.0 is a 16 bit operating system, and could be run on 286 and above processors. It could also take advantage of VGA graphics cards, allowing for 16 and 256 color modes.
Windows 3.0 was supported by Microsoft until 2001, and is now considered obsolete.