4 ms·mainframes edit: thought some ibm mainframes used power in helper roles.by dmitrygr 1y agomainframes edit: thought some ibm mainframes used power in helper roles.wmf 1y agoPower isn't a mainframe.dmitrygr 1y agoHm, I thought some of the peripheral controllers in IBM mainframes used power, guess i was wrong.gosub100 1y agoI think you meant to say "mainframe isn't a customer" ? Power architecture runs almost exclusively on mainframes.wmf 1y agoThat still isn't correct.dardeaup 1y agoCorrection - POWER architecture runs exclusively on 'i' and 'p' series. 'z' series is mainframe.