I'm sorry, but this is completely wrong. Furthermore, I'm not talking about the history of hardware/software in Hollywood - your original statement was about the use of software by audio professionals. I was an "audio professional". I trained as a Sound Engineer (City & Guilds 1820 Sound Engineering, and BTEC ND Music Technology), and was there, right around the time period in question. I also worked in London's West End for years, which is the equivalent of New Yorks's Broadway.

I want to be charitable, and hope you're getting confused about the "Apple" versions - in that, you're conflating when Apple (the company) bought Emagic Logic, for when Logic (the software) was available on Apple Mac OS?! Either way, doesn't make your former statements any less incorrect.