FreeDOS

FreeDOS
	FreeDOS 1.1 default shell, FreeCOM
Developer	Jim Hall & The FreeDOS team
Written in	Assembly language, C
OS family	DOS
Working state	Current
Source model	Open source
Initial release	16 September 1994
Latest release	1.4 / 5 April 2025
Repository	github.com/FDOS ;
Available in	English, German, Dutch, French, Turkish, Swedish, Spanish
Platforms	x86
Kernel type	Monolithic kernel
Influenced by	MS-DOS
Default; user interface	Command-line interface (COMMAND.COM)
License	GNU GPL with various different licenses for utilities
Official website	freedos.org

FreeDOS (formerly PD-DOS) is a free software operating system for IBM PC compatible computers. It intends to provide a complete MS-DOS-compatible environment for running legacy software and supporting embedded systems.^[7] FreeDOS can be booted from a floppy disk or USB flash drive^[8]^[9] and is designed to run well under virtualization or x86 emulation.^[10]

The FreeDOS project began under Jim Hall in 1994, and the first stable version was released in 2006. Unlike most versions of MS-DOS,^[11] FreeDOS is composed of free software, licensed under the terms of the GNU General Public License.^[2] However, other packages that form part of the FreeDOS project include non-GPL software considered worthy of preservation, such as 4DOS, which is distributed under a modified MIT License.^[12]

^ Cite error: The named reference FreeDOS_Spec was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference FDOS_2021 was invoked but never defined (see the help page).
^ Cite error: The named reference FreeDOS_A1 was invoked but never defined (see the help page).
^ "FreeDOS 1.4 | The FreeDOS Project". 2025-04-05. Retrieved 2025-04-08.
^ Cite error: The named reference FDOS_Download was invoked but never defined (see the help page).
^ Cite error: The named reference Villani_1996_Kernel was invoked but never defined (see the help page).
^ Cite error: The named reference homepage was invoked but never defined (see the help page).
^ Cite error: The named reference Franske_2007_USB was invoked but never defined (see the help page).
^ Cite error: The named reference FreeDOS_Floppy was invoked but never defined (see the help page).
^ Cite error: The named reference Gallagher_2014 was invoked but never defined (see the help page).
^ Cite error: The named reference Turner_2018 was invoked but never defined (see the help page).
^ Cite error: The named reference 4DOS was invoked but never defined (see the help page).

[FreeDOS_Spec-1] Cite error: The named reference FreeDOS_Spec was invoked but never defined (see the help page).

[FDOS_2021-2] Cite error: The named reference FDOS_2021 was invoked but never defined (see the help page).

[FreeDOS_A1-3] Cite error: The named reference FreeDOS_A1 was invoked but never defined (see the help page).

[wikidata-d49c7c74e724cb9adcb9094460409ce4793e6db5-v18-4] "FreeDOS 1.4 | The FreeDOS Project". 2025-04-05. Retrieved 2025-04-08.

[FDOS_Download-5] Cite error: The named reference FDOS_Download was invoked but never defined (see the help page).

[Villani_1996_Kernel-6] Cite error: The named reference Villani_1996_Kernel was invoked but never defined (see the help page).

[homepage-7] Cite error: The named reference homepage was invoked but never defined (see the help page).

[Franske_2007_USB-8] Cite error: The named reference Franske_2007_USB was invoked but never defined (see the help page).

[FreeDOS_Floppy-9] Cite error: The named reference FreeDOS_Floppy was invoked but never defined (see the help page).

[Gallagher_2014-10] Cite error: The named reference Gallagher_2014 was invoked but never defined (see the help page).

[Turner_2018-11] Cite error: The named reference Turner_2018 was invoked but never defined (see the help page).

[4DOS-12] Cite error: The named reference 4DOS was invoked but never defined (see the help page).

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]