 Through the early 1980s, and especially with the launch of the IBM PC, the market began to shift from a hobby-and-educational oriented one to more and more business applications.Ziff quickly shifted the focus of the magazine to be more software-oriented, and the programming articles disappeared shortly after the sale.This attempt to refocus on business computing was not successful, and when Bill Ziff had a cancer scare in 1985 he began concentrating his businesses, selling off many of the specialty magazines.