* Sandy Stewart has been appointed vice...

* Sandy Stewart has been appointed vice president of engineering for Archive Technology Inc., a Costa Mesa supplier of data cartridge tape drives. He joined the company in 1988 as director of program management. Before his promotion, Stewart was director of engineering. His previous experience includes vice president and general manager at Century Data Systems; vice president of engineering at Rodime Inc.; technical director at Micropolis Corp.; and engineering manager at Burroughs Corp.