Assuming this output is indeed NOT from a HDMI or other external display input. This seems to be a some kind of Whiptail UI on the command line, it's showing an update of systemd package unpacking (after the package is downloaded) on ARM platform. TV seems to be of the brand Element, never heard about it TBH. Systemd is used today by many Linux distros as a replacement of the traditional init-scripts. No other information is present in either the screenshot or the description.
I believe it stands for Free/Libre Open Source Software. I think the idea is to explicitly indicate both free as in beer and free as in speech. However, to me it just sounds like throwing in a romance term for the sake of it. But maybe I'm just ill versed on the whole free/libre divide?
There's lots of software out there that is available to use without payment, but is still license restricted in such a way that you are not permitted to redistribute, modify, use for commercial purposes, etc. To many, these rights are the far more important facet of "free" software, above what it costs.
But since the English language has the same word for all of these concepts, we have all these yucks running around with zero-cost but right-restricted software wearing the "FOSS" badge thinking they're part of the club. So some people add "Libre" to the acronym to explicitly disambiguate.
I don't normally engage with comments like these but you do realize Unix predates windows by 10 years. So much so that windows used the bsd net code is some of its network stack up till windows 8
Which part? Package installation (not windows), TUI graphics (IBM PC, predating Windows), or dialog/whiptail dialogs (1994, based on the IBM PC line drawing)?
The unix philosophy is that a piece of software should do one thing, and do it well. Systemd does a dozen things, all of them poorly. It's an especially poor choice for an embedded or appliance system.