"Announced in March 1998, the G3 All-in-One built on the success of previous built-in monitor models. The AIO was the first Built-to-Order All-in-One Mac, and was available only in educational markets. It was based on the same motherboard as its big brother, the PowerMac G3, and had a built-in 15" monitor. The 233 MHz configuration started for $1599, and the 266 MHz configuration, which included video input and output, sold for several hundred dollars more. There was also a built-in Zip drive option. The G3 AIO was retired only 6 months later, after the release of the iMac." (picture credits: Apple Computer)

This byte of Apple's history from Wired's, "30 Years of Apple Products."