os-808x
operating system for Intel 8086 / 8088
...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.