MAI Basic Four

Basic/Four is a variety of Business Basic which originally ran on computers of the same name introduced in 1971. The company that produced the system, Management Assistance, Inc., was later known as Basic/Four Corporation, MAI Basic Four, Inc., and MAI Basic Four Information Systems. Basic/Four set the pattern for the business BASIC market, with similar products appearing on other minicomputer systems, and later, microcomputers like the Apple III. It remained a popular product into the early 1980s, when increasingly powerful micros replaced it, and MAI turned to selling pre-packaged Basic/Four like accounting software.