Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: notesfiles Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!zehntel!hplabs!hp-pcd!orstcs!sechrest From: sechrest@orstcs.UUCP (sechrest) Newsgroups: net.micro.hp Subject: Re: HP-41 info needed Message-ID: <51400001@orstcs.UUCP> Date: Fri, 10-Aug-84 14:49:00 EDT Article-I.D.: orstcs.51400001 Posted: Fri Aug 10 14:49:00 1984 Date-Received: Tue, 14-Aug-84 00:39:16 EDT References: <165@dataio.UUCP> Organization: Oregon State University - Corvallis, OR Lines: 16 Nf-ID: #R:dataio:-16500:orstcs:51400001:000:596 Nf-From: orstcs!sechrest Aug 10 10:49:00 1984 The Extended memory is treated like the cassette in the way that you access it. It is in a different part of memory than the "main" memory. The "overlaying memory" comes from somepeople modifying their systems to install their own memory. You must be carefull when you do that. The cassete drive MUST have the HPIL interface. You can upgrade to a 41CX which has most of the memory built in plus extended functions plus the timer. Having the card reader or the cassette is usefull because you can archive programs for other people and other places. John Sechrest orstcs!sechrest