The board of directors of Wang Government Services Inc. of McLean, Va., appointed C. Harlan Johnston as president and chief executive officer.

Computer Sciences Corp. of Falls Church, Va., has promoted Harry Part to vice president of transportation systems for the company's civil group. He is responsible for CSC's business with the Transportation Department.

Nelson Chan is senior vice president of worldwide sales and marketing at SanDisk Corp. of Sunnyvale, Calif.

Powersim Corp. of Reston, Va., has named John Chomeau vice president of marketing and communications.

Sherikon Inc. announced that Paul Farren has joined the Chantilly, Va., company as director of development of its multimedia division based in Arlington, Va. Andrew Bukowski

Venkat Gopalan is vice president of management information systems at DynCorp of Reston, Va. He also will continue to serve as chief technology officer for DynCorp Information and Enterprise Technology Inc., where Joseph L. Cunningham has been named president and M. Harrison Boyd is vice president of sales.

National Computer Systems Inc. of Arlington, Va., has announced the promotion of J. McNamara Curtis to president of government solutions.

Xyvision Enterprise Solutions Inc. of Reading, Mass., has expanded its services staff. Ralph G. Lloyd is director of business development and Roger Manack is director of western region sales.

Stephen A. Kalish is president of the civil group, federal sector, at Computer Sciences Corp. of El Segundo, Calif.

Paul G. Casner Jr. has been named executive vice president and chief operating officer of DRS Technologies Inc. of Parsippany, N.J.

Qualtech Systems Inc. of Wethersfield, Conn., has appointed Kevin Cavanaugh as its chief operating officer.

Daniel L. Spalding is vice president of finance and chief financial officer at TRM Corp. of Portland, Ore.


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