Why are Lenovo Thinkpads used on the International Space Station?

Why that brand instead of some other brand?

Lenovo is supposedly more IT-friendly.

They are specially made, space rated, fire or explosion proof, and not regular ones.
And they are the same model that IBM used to make many years ago. So I guess NASA has confidence in them.

Lenovo is a company that many schools, workplaces, and the ISS. It is easier to use because gravity could affect easy usage of a computer.

Computer companies bid on the contract and one Wins the bid.