A little bit of history Why the hyphen? Well, the name initially meant Microcomputer Software or Micro-soft. This is how Bill Gates referred to the company. By then Microsoft was not actually a company but an idea. Microsoft was legally registered in 1976 and that’s when the hyphen was lost.
Bonus fact: Bill Gates left Harvard University in 1975 to fully devote himself to Microsoft. Did you know that Steve Jobs also was a college dropout?