MS-DOS 7 MS-DOS 7 MS-DOS 7 is a computer operating system which has never been released separately by its creator Microsoft, but which corresponds to the basic (real mode) of the Windows 9x family of operating systems. Windows 95 reports to be MS-DOS 7.0, while Windows 98 and Windows 98SE report as 7.1. A major difference between earlier versions of MS-DOS is the usage of the MSDOS.SYS file. In version 7 this is not a binary file, but a pure setting file. The older boot style, where Windows is not automatically started and the system boots into a DOS command shell, could
Operating system systems that have fixed deadlines use a real-time operating system such as VxWorks, PikeOS, eCos, QNX, MontaVista Linux and RTLinux. Windows CE is a real-time operating system that shares similar APIs to desktop Windows but shares none of desktop Windows' codebase. Symbian OS also has an RTOS kernel (EKA2) starting with version 8.0b. Some embedded systems use operating systems such as Palm OS, BSD, and Linux, although such operating systems do not support real-time computing. Operating system development is one of the most complicated activities in which a computing hobbyist may engage. A hobby operating system may be classified as