A set of standard CAMAC modules for Spacelab Shuttle payloads is being developed by NASA. Work is proceeding concurrently at the Goddard and Marshall Space Flight Centers. The modules will provide Spacelab scientists with the means to interface to Spacelab systems. multi-microprocessor system being developed at Goddard as part of this project. system consists of an intelligent interface controller, computer module, and a dual-ported memory module. The interface controller and the computer have been integrated into a cosmic gamma ray balloon payload which has been flown over Palestine, Texas, and Alice Springs, Australia. The components from the Goddard and Marshall systems will be available to Spacelab scientists to meet their payload electronics and computing needs. This paper describes the