3 ms·There was no Mac OS 7. You mean System 7.by mattl 8y agoThere was no Mac OS 7. You mean System 7.philwelch 8y agoThere was Mac OS 7.6.mattl 8y agoThat isn’t Mac OS 7. Mac OS 7.6 was a precursor to Mac OS 8 and released in the era where Apple was working on Rhapsody. System 7 was released in 1991.