QuickTime requires a Macintosh computer with a 68020 or later microprocessor, with system software version 6.0.7 or later. Apple recommends at least 4MB of memory when using QuickTime with System 7. QuickTime relies on the capabilities of 32-bit QuickDraw, which only runs on 68020 or later Macintosh computers.
With System 6.0.7, the 32-Bit QuickDraw file is located on the Printing Tools disk in the Apple Color folder and isn't automatically installed. You must install it manually. With System 7 and later versions, 32-bit QuickDraw is built into the system software, and a separate file for 32-bit QuickDraw is no longer required.
If you want to use QuickTime on an older Macintosh, you might be able to upgrade the unit or use a third-party board to bring it up to a 68020 CPU or higher. QuickTime will then work with System 7 installed, or with the 32-bit QuickDraw file installed in system 6.0.5 or 6.0.7.
In regards to QuickDraw working on a SCSI-based graphic adapter, we don't have any testing information on its functionality with such a device. We have heard reports of these devices being significantly slower in the screen drawing process. Based on this information, we would expect QuickTime to have a very poor performance when compared to operation with direct video through a video board or built-in video.
To install, simply drag the QuickTime extension to your System Folder and restart. Please note that the Installer for QuickTime Starter Kit 1.0 will replace QuickTime version 1.5 with 1.0. Just reinstall the QuickTime 1.5 extension.