having the adjustability of a desk lamp. One of the advertisements for the machine featured it sitting in a store window "reacting" to every move made by a passer-by on the street. At the end, when the man sticks out his tongue, the iMac responds by opening its optical drive. The internal components are housed in a 10.6" half-sphere, ice white case with a chromed stainless steel neck that supports a 15" TFT active matrix LCD display. Unlike some earlier iMac models that are convection-cooled, the iMac "Flat Panel" series is cooled by a quiet internal fan. The original model from 2002 shipped with Mac OS X 10.1 and Mac OS 9.2.2 preinstalled with Mac OS X selected as the default OS. The Gateway Profile was one of the few Wintel competitors to the iMac G4 in the all-in-one LCD computer market. A reviewer noted that the Profile had better processing power, due to its Intel Pentium 4, whereas the iMac was hampered because its G4 chip lacked the 1 MB L2 cache found on the higher-end Power Mac. The iMac had clear advantages in LCD screen quality (it uses a digital LCD as opposed to an analog LCD), ergonomics (particularly the flexible monitor arm), and multimedia. The reviewer concluded that the iMac worked well as an introduction to the Macintosh ecosystem, but noted that their relatively high prices were approaching that of laptops, which were portable and had higher resolution LCD screens. Specifications Timeline of iMac models References External links Apple Support Page Profile: 15" iMac G4/700, 800 Video of Jobs launching the iMac G4 at Macworld 2002 (starts at 59 minutes) Overclocking guide for the Apple iMac G4 main logic board G4 Macintosh all-in-ones PowerPC Macintosh computers Computer-related introductions in 2002