what is the smallest os
1. KolibriOS: Smallest GUI OS. Kolibri is the smallest GUI operating system. It was forked off from MenuetOS. Written completely in assembly language, it is available in two versions: 1.44MB with essential features and 3MB with additional features.lax is a modern, live, pocket operating system based on Slackware Linux. Despite its small size of 220MB, it contains essential apps for basic computing, and you can extend its functionality using modules.
This OS can be actually very useful when you have to access some data from age old machines. You can boot into this OS using Floppy, CD/DVD or your Hard Disk. Or you can also try using any virtual machines like VMware or Sun VirtualBox. This is the smallest OS with GUI I have ever seen.If you know any other OS which is as small as this one and also has GUI then please let me know.his OS can be actually very useful when you have to access some data from age old machines. You can boot into this OS using Floppy, CD/DVD or your Hard Disk. Or you can also try using any virtual machines like VMware or Sun VirtualBox. This is the smallest OS with GUI I have ever seen.