Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site eagle.UUCP Path: utzoo!watmath!clyde!burl!ulysses!eagle!adrian From: adrian@eagle.UUCP (A.Freed) Newsgroups: net.micro.mac Subject: New Product Idea: external ram disk Message-ID: <1255@eagle.UUCP> Date: Thu, 25-Apr-85 14:05:38 EST Article-I.D.: eagle.1255 Posted: Thu Apr 25 14:05:38 1985 Date-Received: Fri, 26-Apr-85 07:27:30 EST Distribution: net Organization: AT&T Bell Laboratories, Summit, NJ Lines: 17 We are hearing of hacks to provide 1Mbyte of memory for the Mac. One of the best ways of using this memory is to have 512k for programs and a 512k ram disk. Doesn't this mean that there is a niche for an external ram disk? This would suit better those of us who don't want non-Apple approved hardware intrusions. I would much rather pay for a ram-disk than a second floppy drive. You could boot off the ram-disk (by setting it up from the floppy and hitting reset). Battery backup ought to be straightforward. 30secs is enough to transfer the ramdisk to a couple of floppies. Two questions: Is anyone doing such a thing? What performance limitations does the hardware interface have to the second drive? I am assuming that 0 seek time provides the most benefit.