Radon is a cancer-causing, radioactive gas. You can't see radon, you can't smell it or taste it, but it may be a problem in your home. Radon is estimated to cause many thousands of deaths each year. That's because when you breathe air containing radon, you can get lung cancer.
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.
wearables OS (wearables operating system). - A wearable OS is an operating system designed or refactored to satisfy the requirements of wearable computers, which can be significantly from one type of device to another and also different from ... (WhatIs.com).