What Does IBM Stand For?

I Beg Mercy
I Blame Microsoft
I Bought Macintosh
Ich Bin Műde
Imperialism By Marketing
Impractical But Marketable
In Business for Money
Incredible Bunch of Muffinheads
Incredibly Big Machine
Industry's Biggest Mistake
Insipid Brainless Monster
Insolence Breeds Mediocrity
Intensely Boring Machines
Intergalactic Brotherhood of Motherfuckers
International Bureaucracy Merchants
International Business Machines
It Beats Mattel
I've Been Mislead