I've said it before and I will say it again: Without Jobs Apple is toast. Just like the last time Jobs left.
The original Mac under Jobs' tenure was an utter failure. Lots of press, disappointing sales. Many years after the Mac's introduction the Apple II was still paying the bills at Apple, carrying the Mac project. Jobs' Apple III (note 3 not 2) was a failure. Job's NeXTcube was a failure.
The Mac only became successful after Jobs was gone, when design features he opposed were introduced. An open box, slots, etc.
The iMac G3 of 1998 was Jobs' first successful computer. Prior to that he misread the market, the customers wants/needs over and over again.
That said what really made Macs popular was the shift to Mac OS X, which Jobs deserves some credit for since it was a fork of NextOS, combined with the shift to Intel CPUs. Basically once people no longer had to make a choice between Mac OS or Windows, but could dual boot or effective emulate (the cpu architecture no longer had to be emulated so performance was many times faster) so they could have both operating systems on the same machine. This is when Apple's Mac sales rapidly doubled.
In short while his record with digital music players and mobile devices is pretty damn good, Jobs' record with computers is pretty spotty, more likely a failure than a success. The Apple II was successful in part because Wozniak ignored Jobs on important design decisions and the Apple II had to carry Jobs for many years when he was able to bully people to get his way and those projects failed.