| Arch Linux 12 MB |
A complete Arch Linux restored from a snapshot, additional files are loaded as needed |
| Damn Small Linux 50 MB |
Graphical Linux with 2.4 kernel, Firefox 2.0 and more. Takes 1 minute to boot. |
| Buildroot Linux 5.0 MB |
Minimal Linux with busybox, Lua, tests, internet access, ping, telnet and curl. Exchange files through /mnt/. |
| ReactOS 18 MB |
Windows-compatible OS. Restored from snapshot |
| Windows 2000 22 MB |
Including Pinball and Internet Explorer with internet access. Additional sectors are loaded as needed. |
| Windows 98 9.7 MB |
Including Minesweeper and Internet Explorer with internet access. Additional sectors are loaded as needed. |
| Windows 95 4.6 MB |
Restored from snapshot |
| Windows 3.1 15 MB |
Takes 15 seconds to boot |
| Windows 1.01 0.6 MB |
Takes 1 second to boot |
| MS-DOS 6.22 4.4 MB |
With Enhanced Tools, QBasic, vim, games and demos. |
| FreeDOS 0.5 MB |
With nasm, vim, debug.com, Rogue, some games and demos. |
| FreeBSD 17 MB |
FreeBSD 12.0 base install. Restored from snapshot. |
| OpenBSD 12 MB |
OpenBSD 6.6 base install. Restored from snapshot. |
| 9front 4.4 MB |
A Plan 9 fork. |
| Haiku 46 MB |
An open-source operating system inspired by BeOS. Restored from snapshot. Includes network support. |
| SerenityOS 11 MB |
A graphical Unix-like operating system. Restored from snapshot. |
| HelenOS 7.9 MB |
A graphical operating system based on a multiserver microkernel design |
| Oberon 1.2 MB |
Native Oberon 2.3.6 |
| KolibriOS 1.4 MB |
Fast graphical OS written in Assembly |
| QNX 1.3 MB |
QNX 4.05 Demo disk (no networking) |
| Snowdrop 0.3 MB |
A homebrew operating system from scratch, written in assembly language |
| Solar OS 0.3 MB |
Simple graphical OS |
| Bootchess 512 B |
A tiny chess program written in the boot sector |
| SectorLISP 512 B |
A LISP interpreter that fits into the boot sector |