Mac's [sic] never made it in the corporate space because they were monolithic and overpriced. With a PC, you could put one together with as few or as many different components as you wanted, of varying capabilities according to your needs, and different hardware manufacturers would compete driving innovation and dropping prices. Also, PC's had a head start. Before there were Windows or Macs, there was MSDOS. There was a lot of software written for DOS and Windows would run them (mostly). Or at least allow them to be run. This was a big deal. The deck was stacked against the Mac from the start. Having said that, I'm still impressed that they're still around and doing quite well.