A newsletter of computer history—with a side of "retro computing"—centering around the obscure but significant Sphere microcomputer manufactured in Utah in the mid-1970s. I'm a historian and engineer writing a book about Sphere Corporation, its computer, and community. This newsletter is my way of sharing both progress on the book and also writings technical and historical surrounding the Sphere and related early microcomputing.

The main site with resources and the Virtual Sphere emulator is at https://sphere.computer.