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When the DOSBox application is opened, it automatically mounts to a virtual, permanent [24] Z: drive that stores DOSBox commands and utilities. [28] The reasons for the virtual drive are related to security, [ 29 ] but the user can mount a different drive letter in the emulator to a directory, image file, floppy disk drive, or CD-ROM drive on ...
If only one physical floppy is present, drive B: will be assigned to a phantom floppy drive mapped to the same physical drive and dynamically assigned to either A: or B: for easier floppy file operations. If no physical floppy drive is present, DOS 4.0 will assign both A: and B: to the non-existent drive, whereas DOS 5.0 and higher will ...
For example, in DOS 5, if the current directory is C:\TEMP, then TRUENAME command.com will display C:\TEMP\COMMAND.COM (which does not exist), not C:\DOS\COMMAND.COM (which does and is in the PATH). This command displays the UNC pathnames of mapped network or local CD drives. This command is an undocumented DOS command.
Command-line interpreter (Shell): COMMAND.COM: This is the command interpreter. User configuration files: AUTOEXEC.BAT: This is run by the default shell (usually COMMAND.COM) to execute commands at startup. CONFIG.SYS: This contains statements to configure DOS and load device drivers. Standard DOS utility programs:
Mtools is an open source collection of utilities to allow a Unix operating system to manipulate files on an MS-DOS file system, typically a floppy disk or floppy disk image. [ 2 ] [ 3 ] The mtools are part of the GNU Project and are released under the GNU General Public License (GPL-3.0-or-later).
4DOS is a command-line interpreter by JP Software, designed to replace the default command interpreter COMMAND.COM in Microsoft DOS and Windows.It was written by Rex C. Conn and Tom Rawson and first released in 1989.
The difference between DOSBox and any DOS is that in DOS, the drive letters are already allocated to storage devices and partitions, typically A: and B: for floppy drives, C: for the hard drive and a drive letter for the CD ROM drive is usually D: (once the CD ROM drivers are loaded) and of course letters for drive partitions.
The original DOS API in 86-DOS and MS-DOS 1.0 was designed to be functionally compatible with CP/M.Files were accessed using file control blocks (FCBs). The DOS API was greatly extended in MS-DOS 2.0 with several Unix concepts, including file access using file handles, hierarchical directories and device I/O control. [1]