"To collect, preserve, interpret and display the artifacts and history of the information age."with an emphasis on the United States.
Founded in 1990, they are a non-profit organization located in downtown Bozeman, Montana, USA.
Among their 1,000+ artifacts is an IBM 1620 Model 2.
If you are traveling to Montana (especially nearby Yellowstone National Park or Glacier National Park) it's well worth a stop at the American Computer Museum.
The museum is located at:
American Computer Museum
234 East Babcock Street
Bozeman, MT 59715