CompuServe Information Service
CompuServe Interactive Services
CIS was founded in 1969 as a computer time-sharing service. Along with AOL and Prodigy, CIS was one of the first pre-Internet, on-line services for consumers, providing bulletin boards, on-line conferencing, business news, sports and weather, financial transactions, electronic mail, Usenet news, travel and entertainment data and on-line editions of computer publications. CIS was originally run by CompuServe Corporation.
In 1979, CompuServe was the first service to offer electronic mail and technical support to personal computer users. In 1980 they were the first to offer real-time chat with its CB Simulator. By 1982, the company had formed its Network Services Division to provide wide-area networking to corporate clients.