What are some five-letter operating systems?

15 of the 128 operating systems in Icillion have exactly 5 letters, for example Linux, macOS and Tizen.

Which five-letter operating systems start with T?

T is the most common first letter here, with 3 names, such as Tails, TENEX and Tizen.

Computer Science · lists

These are the five-letter operating systems in Icillion: 15 names, from “Haiku” to “Xenix”.

15 of the 128 operating systems have exactly 5 letters (12%).
Most start with T (3), M (2) and R (2).
Only names of one word are counted, and only their letters: spaces, hyphens and apostrophes are not.

What are some five-letter operating systems?: 15 of the 128 operating systems in Icillion have exactly 5 letters, for example Linux, macOS and Tizen.
Which five-letter operating systems start with T?: T is the most common first letter here, with 3 names, such as Tails, TENEX and Tizen.

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