IBM top brass considered the PC market something they had to be in that could use to upsell other more expensive IBM kit. They were very surprised when it beca

IBM top brass considered the PC market something they had to be in that could use to upsell other more expensive IBM kit. They were very surprised when it became a hit and established a new market but then they lost it when the closed spec MCA (Microchannel Architecture) PC. The cloners (Dell/Compaq) banded together and did EISA (Extended ISA) in reponse and went their own way.