The Play Station (as it was originally called) started out as a CD add-on for the Super Nintendo, until the deal was broken in a very public way and Philips entered into a similar partnership with Nintendo. The Philips and Nintendo combination ended with some terrible licensed games on the CD-i platform and nothing else. Sadly for Nintendo, Sony was infuriated by the double-cross and vowed to enter the gaming market. Rarely has revenge tasted so sweet.
Apparently spite is the step-mother of invention.