This project is an effort to develop open source software for all old platforms, like MSX, Commodore, AMIGA, Atari, ..... and collect technical information about old platforms, keeping the "old skool" flame alive.
An operating system written in C & assembly.
An operating system written in C & assembly. FruityOrange uses the concept of a monolithic kernel and GRUB as bootloader for the kernel and some modules. There is still no release. If you want do try the development-version, get the Sourcecode and build by yourself!
Spezi-OS is a OS Development Project. It's main goal is to develop a complete 32-Bit Protected Mode OS booting from harddisk and floppy. It is mainly written in Nasm and C. It shall provide all modern features you from other Operating Systems.
operating system for Intel 8086 / 8088
OS-808x is an operating system for Intel 8086 / 8088. Written by Raja Subramanian in the year 1997 (in academic interest). Objective is to understand how operating system, device drivers and system software works in 8086 architecture / IBM x86 PC. OS was written completely on x86 assembly language. It will be useful for people who wants to understand BIOS, x86 architecture and how OS provides services in 8086 real mode. It performs, 1. Completely written in x86 Assembly 2. 32 OS services/functionality 3. Menu Driven Shell provides utilities like RAM check, Disk Viewer, Printer, Clock, Alarm etc., 4. OS supported simple file concept 5. Security using XOR Encryption Sources are available in sources section. See the Wiki for screen shots and how to run this OS on DOSBox / Wine environment.