Google’s Chrome O/S is popular for tablets, notepads, and some laptops.  The newly released version 75 contains new features & addresses multiple security vulnerabilities:

https://www.us-cert.gov/ncas/current-activity/2019/06/27/google-releases-security-updates-chrome-os

https://chromereleases.googleblog.com/2019/06/stable-channel-update-for-chrome-os-m75.html

The Stable channel has been updated to 75.0.3770.102 (Platform version: 12105.75.0) for most Chrome OS devices. This build contains a number of bug fixes and security updates. Systems will be receiving updates over the next several days.

New Features
1. Enabling Assistant for Google Account Managed with Family Link, under the applicable age in their country
2. Linux (Beta) can now access Android devices over USB
3. Files app support for 3rd party file provider apps implementing Android 4. DocumentsProvider APIs
5. Add support for PIN code with native printers for managed devices
6. Security Improvements– Microarchitectural Data Sampling mitigations