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Don't forget that IBM is HAL from 2001: A Space Odyssey if you move each letter over one on the alphabet.

(H A L) - (I B M)

Nice! Also, IBM was named by one-upping ever letter of NCR.

I'm not certain if you're trolling, but IBM stands for International Business Machines.

No trolling here,

International > National

Business > Cash

Machines > Registers