Control Program for Microcomputers Simple monolithic command monitor & BIOS layer Designed for Intel 8080 & compatible 8-bit microcomputers
Disk Operating System family Monolithic kernel operating in real mode on Intel x86 CPUs
MS-DOS was a simple, minimalist operating system with these key characteristics
Personal Computer Disk Operating System
Q DOS OS QDOS was heavily inspired by CP/M, to ensure software compatibility
FreeDOS is a free, open-source operating system designed to be compatible with MS-DOS
FreeRTOS Real-time microkernel (non-monolithic
Advanced user account controls, file permissions, job accounting.
Haiku is a unique project that preserves the innovative spirit of BeOS—focusing on a fast, elegant, and unified personal computing experience
Before OS/360, IBM developed separate hardware and software for each computer model. Programs written for one system wouldn’t run on another.
Microkernel-like, with heavy reliance on a virtual machine Portable virtual machine: Dis VM runs the Limbo language everywhere
MULTI IDE showing INTEGRITY tasks, trace debugging & memory partitions
