WebOS

webOS

Developer	LG Electronics, Previously Hewlett-Packard & Palm
Written in	C++, Qt[1]
OS family	Linux (Unix-like)
Working state	Current
Source model	Source-available
Latest release	LG TV: 24 Open-source: 2.24.0 HP TouchPad: 3.0.5 Palm Pre: 2.2.4
Marketing target	Embedded devices
Platforms	ARM
Kernel type	Monolithic (Linux kernel)
Default user interface	Graphical (Luna)
License	Apache License
Preceded by	Palm OS (phones) NetCast (smart TVs)
Official website	Open-source website Developer website

webOS, also known as LG webOS and previously known as Open webOS, HP webOS and Palm webOS,^[2] is a Linux kernel-based multitasking operating system for smart devices such as smart TVs that has also been used as a mobile operating system. Initially developed by Palm, Inc. (which was acquired by Hewlett-Packard), HP made the platform open source, at which point it became Open webOS.

The operating system was later sold to LG Electronics, and was made primarily a smart TV operating system for LG televisions as a successor to LG Netcast. In January 2014, Qualcomm announced that it had acquired technology patents from HP, which included all the webOS and Palm patents; LG licenses them to use in their devices.

Various versions of webOS have been featured on several devices since launching in 2009, including Pre, Pixi, and Veer smartphones, TouchPad tablet, LG's smart TVs since 2014, LG's smart refrigerators and smart projectors since 2017.