From: utzoo!decvax!harpo!seismo!uwvax!pal Newsgroups: net.micro Title: Re: re: Lisa 68000 speed Article-I.D.: uwvax.750 Posted: Sat Feb 5 14:30:53 1983 Received: Sun Feb 6 05:39:30 1983 References: tektronix.950 The latest BYTE magazine has a review of the Lisa, and they say that the 5MHz clock is used so that the video circuitry has time to refresh the screen while the processor is NOT accessing memory, leading to a more stable display.