C.A.S. New & Used Computers

C.A.S. New & Used Computers was a multi-location retail store founded in ~1983 and operated by Bruce Ruedig. An article in the Chicago Tribune from August 3, 1987 mentions four locations in Chicago, Villa Park, Schaumburg and Glenview.

A mailing label found on an Apple ][ accessory lists this address and phone:

340 Wainwright Drive
Northbrook, IL 60062
312 205-0110

It is unknown whether the Northbrook and Glenview addresses referred to the same location.