DOS (MS-DOS, PC-DOS, etc.)

Regular DOS--versions 6.22 and earlier--uses the FAT file system for file access. This includes the FAT12 and FAT16 variations. Windows 95 comes with a "built-in" version of DOS, version 7.x. The OEM Service Release 2 version of Windows 95 supports FAT32, and therefore, DOS 7.1 that comes with Windows 95 OSR2 also supports FAT32. FAT32 partitions are not compatible with standard, pre-7.x DOS.

Next: Windows 3.x