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Developer Ville M. Turjanmaa
Written in FASM assembly language
Working state Beta
Source model Open source (32-bit)
Closed source (64-bit)
Initial release May 16, 2000 (2000-05-16) (32-bit)
Latest release 32-bit: 0.86 / February 20, 2015 (2015-02-20)
64-bit: 1.10.40 / October 16, 2015 (2015-10-16)
Available in English, Russian, Chinese, Czech, Serbian
Platforms IA-32, x86-64
Kernel type Monolithic
Default user interface Graphical user interface
License GPL v2 (32-bit)
Proprietary (64-bit) [2]
Official website

MenuetOS is an operating system with a monolithic preemptive, real-time kernel, including video drivers, all written in FASM assembly language, for 64-bit and 32-bit x86 architecture computers, by Ville M. Turjanmaa. It has a graphical desktop, games, and networking abilities (TCP/IP stack), yet it still fits on one 1.44 MB floppy disk. On an Intel Pentium MMX 200 MHz it can boot in 5 seconds.[1]

MenuetOS was originally written for 32-bit x86 architectures and released under the GPL, thus many of its applications are distributed under the GPL. [2]

The 64-bit MenuetOS, often referred to as Menuet 64, remains a platform for learning 64-bit assembly language programming. The 64-bit Menuet is distributed without charge for personal and educational use only, but without the source code.[2]

Multi-core support was added on 24 Feb 2010.


  • Features 1
  • System requirements 2
  • Distributions 3
    • 32-bit 3.1
    • 64-bit 3.2
  • See also 4
  • References 5
  • External links 6


MenuetOS development has focused on fast, simple, efficient implementation. MenuetOS has networking abilities, and a working TCP/IP stack. Most of the networking code is written by Mike Hibbett.

The main focus of Menuet has been on making an environment for easy assembly programming, but it is still possible to run software written in high-level programming languages on the assembler core. The biggest single effort towards high-level language support is Jarek Pelczar's work in porting C libraries to Menuet.

The GUI at version 0.99 supports display resolutions up to 1920 x 1080 (16 million colours) with window transparency. The OS has support for several classes of USB 2.0 peripherals. MenuetOS ships with the shareware versions of Quake and Doom.[2]

For disk storage, MenuetOS supports the FAT32 file system.[3]

System requirements

  • CPU: Pentium 90[4]
  • RAM: > 32 MB[4] (24 MB by tweaking)[5]
  • Videocard: VESA 2.0 compatible[4]
  • Storage: 1.44" floppy drive[4]
  • Mouse: COM or PS/2 interface[4]



  • Menuet32
  • GridWorks "EZ" distribution (comprehensive 32-bit archive packages) (CD/HD Boots)


The 64-bit main distribution is now proprietary. Several distributions of the 32-bit GPL MenuetOS still exist, including translations in Russian, Chinese, Czech, and Serbian.

  • Menuet64

See also


  1. ^ - Really interesting OS, 2004-12-27
  2. ^ a b c (German) MenuetOS: In Assembler geschriebenes Betriebssystem,, 2009-08-10
  3. ^ (Russian) Яков Уваров (30 August 2005) Мал золотник, да дорог, Computerra
  4. ^ a b c d e - What are sys requirements for Menuet?, 2004-09-01
  5. ^ - menuetos -> 64bit / 32bit -> Help, 2008-03-10
  • David Chisnall (Jun 22, 2007) A Roundup of Free Operating Systems. MenuetOS, informIT
  • (German) MenuetOS - 32bit-Betriebssystem auf einer Floppy, Der Standard, 12 May 2003
  • Eugenia Loli-Queru (5 Sep 2001) Interview With Ville Turjanmaa, the Creator of MenuetOS, OSNews
  • Ville M. Turjanmaa (December 1, 2001) The Menuet Operating System. Packing a lot of punch into a small package, Dr. Dobb's

External links

  • MenuetOS homepage (Menuet64 oriented)
  • MenuetOS C Library
  • MenuetOS compared to AtheOS and SkyOS (2002)
  • an interview with Ville Turjanmaa and Madis Kalme, two of the MenuetOS developers (2009)
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