In 1981, a little company called IBM teamed up with Microsoft to create something called a personal computer.  And as Tandy president John Roach said, it’s not that significant.

Yes, IBM and Microsoft began the personal computing revolution with the $1,500 PC.  Microsoft included the first major release of MS-DOS, the influential operating system that gave uses a simple (at the time) way to make full use of their powerful 4.77 MHz processor.  Some geeks still use DOS to this day, feeling the world is better in black and white and hard to use.