He was at the helm when Apple hooked up with Sony to produce the PowerBook 100, introducing the set-back keyboard, wrist-rest and central pointing device layout on which virtually all
modern laptops are still based.
He also invested in improving an obscure British microprocessor called "ARM"... and although the Newton was a flop, the ARM certainly wasn't ("Hold our beers!" say NVIDIA) and proved somewhat useful to Jobs & Cook down the line...
All joking apart - the CEOs from the interregnum deserve some
credit for there still being an Apple for Jobs to come back to, after a decade during which it was almost impossible to compete with the mighty Wintel empire (even by building a better product) and pretty much all the other non-PC makers either went to the wall or switched to making clones.