Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site watmath.UUCP Path: utzoo!watmath!csc From: csc@watmath.UUCP (Jan Gray) Newsgroups: net.micro Subject: Re: Will the real Amiga stand up! Message-ID: <16178@watmath.UUCP> Date: Wed, 14-Aug-85 21:43:11 EDT Article-I.D.: watmath.16178 Posted: Wed Aug 14 21:43:11 1985 Date-Received: Sat, 17-Aug-85 15:35:28 EDT References: <1087@wucs.UUCP> Reply-To: jan@looking.UUCP (Jan Gray) Organization: U of Waterloo, Ontario Lines: 22 Summary: In article <1087@wucs.UUCP> dale@wucs.UUCP (Dale Frye) writes: >In Byte they show a picture of the Amiga motherboard with two 27256 ROM's and >room for two more. The picture also shows only 8 41256s. Is the memory bus >only 8 bits wide? However in a new magazine called AmigaWorld there is a >picture of the motherboard with 16 41256s. I couldn't see any ROM but then the >disk drive was in the way. A friend who attended a local dealer roundup by >Commadore told me that there isn't any system ROM. Instead the system is loaded >on power-up into RAM and then is write-protected. Look closer. Those DRAMs have *18* pins. They are almost certainly 64K x 4, not 256K x 1, so the Amiga has a 32 bit bus (which is absolutely necessary to get the high bandwidth to video if you work it out). I will also speculate that the picture in AmigaWorld is of the new Amiga with "writable control store" (Oh God!) which uses the extra 256K for the OS. >MOST IMPORTANT QUESTION!!!! >3: Is the memory data path 8 or 16 bits wide!!!!!!!! 32 bits. I think. Jan Gray watmath!looking!jan Looking Glass Software, Waterloo 519-884-7473