They do a lot more than you may think. For example your local Walmart, Target or whatever supermarket is likely using IBM for the checkouts, receipt printers and backoffice. Then you've got their enterprise (beastly!) servers which get heavy use with distributed cloud hosting.
They also do bank systems (which most banks in the world use), credit card terminals, medical hardware, etc.
One of their best products (IMO) is their portable, modular datacenter.
Whilst they no longer really focus much on the consumer market, they are big in a lot more places than you may think
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