Path: utzoo!attcan!uunet!ssbell!mcmi!dsndata!wayne From: wayne@dsndata.uucp (Wayne Schlitt) Newsgroups: comp.arch Subject: Re: 64-bit addresses Message-ID: Date: 27 Feb 90 15:43:29 GMT References: <9708@spool.cs.wisc.edu> <20270@cfctech.cfc.com> <36080@mips.mips.COM> <168@csinc.UUCP> <193@zds-ux.UUCP> <36439@mips.mips.COM> <52651@bbn.COM> <3786@uceng.UC.EDU> <4cES02Kd8cLZ01@amdahl.uts.amdahl.com> Sender: wayne@dsndata.UUCP Organization: Design Data Lines: 29 In-reply-to: sbf10@uts.amdahl.com's message of 27 Feb 90 03:37:49 GMT In article <4cES02Kd8cLZ01@amdahl.uts.amdahl.com> sbf10@uts.amdahl.com (Samuel Fuller) writes: > In article <3786@uceng.UC.EDU> dmocsny@uceng.UC.EDU (daniel mocsny) writes: > >>> [ ... ] > > > >Now that this barrier is history, how long will we wait for the following? > > > >1. The value of computers sold with 1 GB of physical memory to > >exceed 1% of the total computer market value. > > Most likely, this limit has already been broken. I good percentage of > the mainframes sold today are shipped with more than 1GB of memory > installed. The maximum memory configuration sold on Amdahl mainframes > is 512M main and 2G expanded. I believe that most other mainframe > suppliers are in the same ballpark. umm, i am a little bit confused by this... you are saying that the most memory you can put in an Amdahl is 512M main, but that a "good percentage" of mainframes are shipped with more than 1G of main memory? what is the difference between "main" memory and "expanded" memory? if "expanded" memory is just a back store for paging and disk cache, then i dont think that including "expanded" memory is what people normally think of as "physical memory". (you can also exclude ram disks and the memory on high res video cards) -wayne