DE FACTO STANDARD

(Source: https://qmap.pub/read/4043 )

What does it mean:

(Source: https://www.merriam-webster.com/dictionary/de%20facto )

(Source: https://www.answers.com/Q/What_are_the_De_facto_standard_of_computer_networking )

Translated:

(Source:https://ja.wikipedia.org/wiki/%E3%83%87%E3%83%95%E3%82%A1%E3%82%AF%E3%83%88%E3%82%B9%E3%82%BF%E3%83%B3%E3%83%80%E3%83%BC%E3%83%89)

(Source: https://www.gematrix.org/?word=DE+FACTO+STANDARD )

(Source: https://qmap.pub/read/489 )

(Source: https://qmap.pub/read/810 )

(Source: https://qmap.pub/read/135 )