In my leisure time, I have developed an i386 toy OS called juanmaHOS. It is coded in C/C++ (MingW) and Assembly (Nasm). For the nonce is a single-user, single-task 32b OS, capable of playing sounds using the internal pc speaker, draw forms in the screen (squares, circles, rows, letters) and read keyboard inputs.
It is inspired in the fiction movie of "Patlabor 1" directed by Mamoru Oshii". The idea was to replicate the OS's boot presentation: the squares turning and emerging up from the black button, the letters 'H','O' and 'S', the colors, the synchronization of the letters, the text messages, the password input: "e.hoba" and the "babel" red and white screen.
For the moment the juanmaHOS has been tested in IBM based machines using the Grub boot loader installed in a removable device like flash memory or a floppy. The usual procedure to load the OS is to restore a ".img" image file in a physical drive or copy the "kernel.bin" in a removable drive that already has been restored with that image.
In the future would like to make faster the animations in the screen and add the capability of playing .wav files using the pc internal speaker.
As you can see in the next sections, juanmaHOS is not a desktop OS that can be used as Windows, Linux or ReactOS, but instead is a personal and rudimentary OS developed for learning and entertainment purposes.
Please have fun!