IO.SYS

IO.SYS is an essential part of DOS and Windows 9x. The boot sector of the boot drive's main purpose is to load IO.SYS into memory and transfer control to it. IO.SYS then loads the hardware interfacing routines that non-NT based Windows and DOS operating systems rely on, and then loads MSDOS.SYS.

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DOS: The acronym DOS stands for disk operating system, an operating system component for computers that provides the abstraction of a file system resident on hard disk or floppy disk secondary storage. In some cases, the disk operating system was called DOS, and on the PC compatible platform, an entire f...

Windows 9x: Windows 9x is a generic term referring to Microsoft Windows computer operating systems based on an extended and modified Windows 95 kernel. This includes all versions of Windows 95, Windows 98, and Windows Me....

Boot sector: The boot sector is a region of a hard disk, floppy disk, or similar data storage device. It is loaded to memory and executed as a part of the bootstrap sequence. The boot sector often contains a small computer program that loads the operating system into memory and transfers control to it....

IO.SYS related Images and Photos (experimental)

I.O.U.S.A.

Jupiter and Io

Clash of the Titans Io Tonner Doll