smolOS

smolOS is a minimalist 16-bit operating system written in pure Assembly for x86 real mode. Its goal is to demonstrate the fundamentals of how an OS boots, handles input, and displays output using only the most essential code. smolOS fits in a single boot sector and runs directly on BIOS-compatible hardware or emulators like QEMU. It’s ideal for those seeking to understand bootloaders, BIOS interrupts, and ultra-low-level system programming through a practical and tiny project.

Features

Fully written in 16-bit x86 Assembly
Fits into a single boot sector (512 bytes)
Runs in real mode with BIOS interrupt calls
VGA text mode output for user messages
Basic keyboard input support
No external libraries or dependencies
Bootable from USB or floppy disk image

Project Samples

Project Activity

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License

MIT License

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smolOS Web Site

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Additional Project Details

Programming Language

Python

Related Categories

Python Operating Systems

Registered

2025-04-03

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