Over the past 30 years, designer, writer, and researcher Bill Buxton has been collecting input and interactive devices whose design struck him as interesting, useful, or important. In the process, he has assembled a good collection of the history of pen computing, pointing devices, touch technologies, as well as an illustration of the nature of how new technologies emerge.
Part of the collection was first shown publicly at the Vancouver Art Gallery as part of the Massive Change Exhibition, curated by Bruce Mau, in 2004. Since then the collection has grown significantly, largely through the generous support of Microsoft Research (where he is Principal Researcher).
Now it's all online on this exciting new website.