History: Announced in January 1999, the Rev. C iMac came in 5 dazzling new colors: Blueberry, Strawberry, Lime, Tangerine and Grape. Essentially a speed-bump of the original iMac, the Rev C. lacked both the mysterious "mezzanine" slot and the IRDA port, which lowered its price to $1199 U.S. In April, Apple Replaced the Rev. C with the Rev. D iMac, bumping the processor speed to 333 MHz. All other specs were the same.