professional activities.

The article focuses on issues of interest to the Association for Computing Machinery (ACM) members. The ACM chapters, which will host the ACM 1981 Annual Conference from November 9 to 11, 1981 in Los Angeles, California, will sponsor a professional development seminar after the conference. A call has been issued for participation in the Office Automation Conference to be held from April 5 to 7, 1982 in San Francisco, California. The 9th Annual Conference on Computer Graphics and Interactive Techniques, to be held from July 26 to 30, 1982 in Boston, Massachusetts, has issued a call for papers.