Maynard author and historian David Mark will speak about the rise and fall of Digital Equipment Corporation in Maynard, a 41-year arc that started in 1957 with Kenneth “Ken” Olsen and Harlan Anderson renting space in the mill buildings. Digital peaked in size and sales in 1990 with the mill complex being the world headquarters of a 125,000 employee empire, making Maynard the “Minicomputer Capital of the World.”