just think how much different things might be today if it wasn't for Xerox though, they also invented laser printers, optical disks, LCDs, ethernet..... the list goes on and on!
It wasn't Phillips by a long way (about 10 years) Phillips did make the first CD, but the first optical disks were videodisks not CD's (Phillips got offered the technology, turned it down and then strangely developed it themselves, funny how often that happens!)
though that said I now can't find anything to backup that it was xerox (PARC) so it's does look like I was wrong with that!