Apple and IBM had two working relationships over the years. The 1991 alliance achieved a little more integration of Macs into the corporate world, but the PowerPC chip was its major accomplishment.

the VisiCalc spreadsheet was the killer app for the Apple II, providing reason enough to purchase the hardware. VisiCalc was followed by Lotus 1-2-3 and Excel for the IBM PC. In the early 1990s ...

and the end result may erode the PC's strong grip on the enterprise market. When the news of the IBM partnership hit, the common theory was that this would be a way for Apple to fix its shrinking ...

Bill Gates and Paul Allen form Traf-O-Data ... Computer Club in 1975. Paul Allen and Bill Gates develop BASIC for the Altair 8800. Microsoft is born. 1977: Apple is selling its Apple II for ...