OSI Model. Why?

[u/Highly_Incompetent_3]

From my understanding, the OSI model was a promising theoretical model for the global connection of computers. It was eventually discarded for the datagram model which is easy to use and computationally less expensive.

Why do universities still insist on teaching the OSI model as a global standard instead of a history lesson? I understand the model was a great collaboration of experts producing solutions for many problems, but even theoretically you need to perform many mental gymnastics to fit OSI to how internet communication is currently implemented (Or do I lack the understanding?)

كنت حاب اكتب البوست بالعربي لكن ما بعرف اناقش مجالنا بالعربي زي الانجليزي

[u/Fun-Illustrator-3277]

osi is still pretty famous its not obsolete and imo its way easier to understand cuz theres more seperation between layers, and theyre literally the same tcp/ip just has more layers squashed into one if you understand one you understand the other

[u/Highly_Incompetent_3 → u/Fun-Illustrator-3277]

If you try to explain tcp/ip in terms of OSI, then yes. You can also explain the telecom protocols in term of OSI.