Frank Cary, former IBM CEO, died Jan. 1 at the age of 85.Cary, who was CEO of IBM from 1973 to 1981, was the consummate salesman. During his tenure at IBM, he was responsible for introducing the Selectric typewriter, a 50-lb. luggable computer and the Winchester hard drive. In 1975, Cary spearheaded a move among 21 U.S. corporations to end apartheid in South Africa.I worked for Cary from 1979 to 1981 in the then typewriter division - Office Products Group. I remember IBM's transition from electronic typewriters to the PC, introduced in 1981.When I worked for IBM, customer service was the No. 1 goal. I remember we always had to answer the telephone within three rings - there was a rumor that Cary would test an office's responsiveness by calling periodically.Also during Cary's tenure as CEO, IBM's dress code rules relaxed - men started wearing blue shirts rather than the standard white and women were seen in pant suits. Clean-shaven faces gave away to beards and mustaches.Cary began his career at IBM as a salesman in 1948. During his reign, he doubled IBM's sales and profits. After stepping down as CEO in 1981 he continued to be chairman until 1983, after which he remained a director until 1991. He also served on the boards of Lexmark International and Lincare Holdings, a company that provides in-home patient therapy.Cary is survived by his wife, a daughter and three sons.