The HP 3000 series is a family of minicomputers released by Hewlett-Packard in 1972. It was designed to be the first minicomputer delivered with a full featured operating system with time-sharing. The first model of the 3000 were withdrawn from the market during 1973 until speed improvements and OS stability could be achieved. After its reintroduction in 1974, it ultimately became known as a reliable and powerful business system, one which regularly won HP business from companies using IBM’s mainframes. Hewlett-Packard’s initial naming referred to the computer as the System/3000, and then called it the HP3000. HP later renamed the computer the HP e3000 to emphasize the system’s compatibility with Internet and Web uses.