Microsoft once released a product so useless and confusing that almost all customers abandoned it.


  • The Mac tried to bridge the gap between 20 generations of PCs, but instead achieved almost complete obscurity
  • Only 11 units of OS/2 in Mach 20 reached customers
  • Eight users who bought OS/2 for Mach 20 quickly returned it out of frustration.

In the history of Microsoft’s success, from Windows to the extensive Office software suite, there is one almost forgotten mistake that is a lesson of the technological times.

“Microsoft’s best-selling product of all time” isn’t an obscure game or an unused app, but rather a specialized version of an operating system designed for hardware owned by a very small number of people.

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