An Operating System for Z80 computers, written in assembly

Zeal 8-bit OS is an operating system written entirely in Z80 assembly for Z80 computers. It has been designed around simplicity and portability. It is inspired by Linux and CP/M. It has the concept of drivers and disks while being ROM-able.

• Zeal 8-bit Computer @ YouTube.

Bootstrap post-collapse technology.

Winter is coming and Collapse OS aims to soften the blow. It is a Forth (why Forth?) operating system and a collection of tools and documentation with a single purpose: preserve the ability to program microcontrollers through civilizational collapse.

• Episode 575: Brent's Busted Builds @ Linux Unplugged.