On August 12, 1981, if you found yourself the proud owner of an IBM PC, you were distinguished among your peers. Most home computers at the time were Apple, TI/99 4A, Commodore, or Tandy… but IBM? Before then IBM only made expensive mainframes! To celebrate this eccentricity, serious collectors should look out for exceedingly rare “black-edition” cards. Trust us, you’ll know one when you see it!