How much RAM can you install in a Mac IIx? What size hard drive originally shipped with the Performa 6320? What did the startup chime of the Twentieth Anniversary Mac sound like? All of these questions and more are answered with a cool little app called MacTracker. Mactracker runs under Classic Mac OS version 8.5 and up, OS X 10.1 and up, and now Windows 98 and later. From Mactracker:
Mactracker provides detailed information on every Apple, Motorola, PowerComputing, and UMAX Mac OS computer ever made, including items such as processor speed, memory, optical drives, graphic cards, supported Mac OS versions, and expansion options. Also included is information on Apple displays, printers, scanners, digital cameras, iPod, AirPort Base Stations, Newtons, and Mac OS versions.
Each of the info windows contains an image and description courtesy of either The Apple Museum or Apple-History.com. As well a complete list (including download links) of all Mac OS Updates from Mac OS 7.6.1 to 10.2.6 is included along with Firmware updates for every Mac since the Power Macintosh G3 (Blue and White).
You can get more information and free downloads of the app from Mactrackeris Web site.