Projects / JTMOS


JTMOS stands for "Jari Tuominen's Minimal Operating System". The JTMOS operating system project aims to create a fully functional multitasking x86 operating system. It primarily targets low-end systems with small hard disks, preferably i586 family or newer. Currently focus in the project is on communication, TCP/IP stack, and building up FAT file system support. JTMOS mimics some features from Linux-style operating systems like the root directory system. JTMOS can already boot up from DOS, or independently from hard disk or floppy disk with its own custom bootloader.


Recent releases

  •  21 Jan 2008 04:00

    Release Notes: Several changes has been made. Support for the partition table has been added. Legacy serial port routines have been fixed. Virtual terminal code has been separated from the EGA text mode driver. A Windows Sound System driver has been added. Support for FAT12/16 file systems is planned.

    •  15 Feb 2005 21:22

      Release Notes: Memory paging and enhanced memory protection has been introduced. Several major bugs have been fixed. There are still many bugs, so the project maintains its pre-alpha status. The current pre-built image (jtm/jtm32.img) should boot up on VMware, with a Pico clone showing the introductory text.

      •  16 Jun 2003 15:04

        Release Notes: Improvements were made in the windowing system. It is now possible to move windows. Windows are redrawn properly. Multiple windows can exist on top of each other. Threads can communicate via a simple message-based communication. The GUI now works as a special server to its clients (applications). The GUI API is still in development.

        •  12 May 2003 14:56

          Release Notes: A memory corruption bug in the kernel file system service was fixed. This release contains a new rewritten TCP/IP stack which now responds to ICMP ping.

          •  30 Apr 2003 20:50

            Release Notes: Reliability related fixes have been made. There are also some new utilities. This release needs only one disk to work. LIBC now uses the QuickFit based allocation system, which has proven to be working quite well. This release has also passed a new stress test(runner.bin), such as repeated application launching for over 30,000 times.


            Project Spotlight


            A Fluent OpenStack client API for Java.


            Project Spotlight

            TurnKey TWiki Appliance

            A TWiki appliance that is easy to use and lightweight.