Back in the 1980's even regular computer stores used to sell pirated software.
"Cachet created the word «usability» for that, meaning «start it and be able to use it right away.»"
Even the wikipedia page for "Usability" points to a 1982 BYTE article advocating "Usable" for software tools.
The existing word "usability" was being applied in human computer interface texts/papers around the time (1987, 1988) as computer UIs made advances.
The best summary of history I could find was in this article (section 5.1), claiming the first usage was in 1971, or 1979, or perhaps 1981, depending on interpretation.
https://www.elsevier.es/en-revista-journal-applied-research-...
If you want a single example it is untrue, a good example is "IBM makes usability as important as functionality" from 1986. I found a copy online but hate deeplinking to such things.
It's possible that Cachet was unaware of all that academia and independently "created" the term.
Of course the actual word is much, much older in the world of meatspace.
I was using xcopy at the time as a kid and still play with a physical Amiga. Nostalgia.
Examples:
- The Programmer's PC Sourcebook 155615321X
- The Undocumented PC 0201622777
- PC Intern: The Encyclopedia of System Programming 1557553041
Coupled with Turbo Pascal and Turbo C++, until I could afford Borland C++ 3.1 by virtue of getting a job at Egghead Software. :D "Stack Overflow" was the 4 other people in the under-resourced, purposefully (un)managed high school computer lab run by the wisdom of one Dr. Richard Thaw. It had awful PS/2 model 25's and 30's that were an upgrade from discarded PCjr's. It did, however, have 10BASE2 thin-net and a nominal Novell 2.x or 3.x file server.