this post was submitted on 22 Apr 2022
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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It is, I believe Lenovo has the patent on it, and Dell/Toshiba either license the patent or have their own implementation to get around it. Unicomp used to ship a track-point like pointer on some of their keyboards but it's not as smooth or accurate compared to the Thinkpad ones.