So I installed Signal messenger and later needed pulse audio and lsp plugins. Now the search in the menu no longer finds Signal in search. :-( I have to go to "Internet -> Signal" to open it.
How to fix this?
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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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Hahaha, I wrote a paper on the early history of M$ and the Gary Killdall story, where Gates bought QDOS (the quick and dirty operating system) to offer to IBM, after sending IBM to Killdall (so IBM can get CP/M from Killdall) but after IBM came back to Gates empty-handed (cuz Killdall was out having fun, missing the opportunity of a lifetime) Gates offered that Microsoft could do the OS for IBM so M$ bought QDOS, did some changes in branding (and other tweaks) and then got it packaged for IBM's new computers. If I recall correctly, Killdall threatened to sue, and afterwards, there was a CP/M version offered alongside the MS-DOS version. However, the MSDOS version was like $10-$20 while CP/M was in the hundreds of dollars on top of the computer itself. So Microsoft won.
BUT this was NOT the beginning of M$. They started with BASIC interpreters for Altair when Gates and Allen were at Harvard.