James Harley Baroff, 61, a self-employed systems analyst and former businessman who retired three years ago, died of pancreatic cancer Oct. 30 at his home in Edgewater. He had a second home in Tampa.

He consulted for clients such as the National Institutes of Health and United Nations, real estate firms and libraries. He was a former owner of the Banana Computer Showroom in Silver Spring and the Spectrum software firm.

A Washington native, he was a graduate of Bladensburg High School and Johns Hopkins University, where he also received a doctorate in physics. He did additional graduate work in physics at Victoria University in Manchester, England.

Early in his career, he worked in the defense industry in California. He got into the computer business in Atlanta, where he also bought and sold businesses before moving back to Maryland in 1974.

He taught computer courses at the University of Maryland and was an energy consultant to the Nuclear Regulatory Commission and National Governors Conference.

He was also ranked as a top backgammon player, and was part of an American team that won an international backgammon competition in the Soviet Union in 1990. His other interests included rock climbing and stamp collection.

He was a member of Phi Beta Kappa and treasurer of the Peace Action Group of Anne Arundel County and Kol Ami Congregation in Annapolis.

His marriage to Patricia Baroff ended in divorce.

Survivors include his wife of seven years, Linda Bolliger Baroff of Edgewater and Tampa; three children from first marriage, Angela Baroff Raines of Stevensville, Md., Kenneth E. Baroff of Temple Terrace, Fla., and David H. Baroff of New York; a stepson, Jon Quast of Peoria, Ill.; his mother, Jean Baroff of Washington; a sister, Barbara Seidel of Kensington; and four grandchildren.