Nowadays a package manager is a must-to-have in any OS. It manages dependencies among program components (program and library versions etc, ie. to avoid the "DLL hell" of Windows
).
Debian and Ubuntu Linux have now for more than 20 years a really powerful package manager (called apt).
Not even Micro$oft has managed to create such an important component yet.
It requires a high intellect... 
https://en.wikipedia.org/wiki/Package_manager
"
Ian Murdock had commented that package management is "the single biggest advancement Linux has brought to the industry", that it blurs the boundaries between operating system and applications, and that it makes it "easier to push new innovations [...] into the marketplace and [...] evolve the OS".[21]
"
).Debian and Ubuntu Linux have now for more than 20 years a really powerful package manager (called apt).
Not even Micro$oft has managed to create such an important component yet.
It requires a high intellect... 
https://en.wikipedia.org/wiki/Package_manager
"
Ian Murdock had commented that package management is "the single biggest advancement Linux has brought to the industry", that it blurs the boundaries between operating system and applications, and that it makes it "easier to push new innovations [...] into the marketplace and [...] evolve the OS".[21]
"