Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!tut.cis.ohio-state.edu!snorkelwacker.mit.edu!ai-lab!wheat-chex!bson From: bson@wheat-chex.ai.mit.edu (Jan Brittenson) Newsgroups: comp.sys.handhelds Subject: Re: HP-48SX marketing, etc Message-ID: <12558@life.ai.mit.edu> Date: 30 Dec 90 21:27:22 GMT References: <12170@life.ai.mit.edu> <20820008@col.hp.com> <277c16ec:1345.2comp.sys.handhelds;1@hpcvbbs.UUCP> Sender: news@ai.mit.edu Organization: nil Lines: 21 In article <277c16ec:1345.2comp.sys.handhelds;1@hpcvbbs.UUCP> akcs.falco@hpcvbbs.UUCP (Andrey Dolgachev) writes: > Check Educalc for info on programming your own ROM cards, they offer a > service where you send in your RAM card w/ your program, and they send > you a ROM card (for $, of course). They also sell a ROM programmer > and blank ROM cards. My request is not of great interest anymore. I'm not interested in anything erasable. EEPROMs fade with time, and EPROMs sometimes forget bits which is acceptable only for prototyping. I was primarily asking for masked/fused ROMs, not anything reprogrammable. The cost of $60 (about 10% off at larger quantities) for a 32k card is totally ridiculous and equally unmarketable. Masked ROMs come at a fraction of this, and at much better turnaround times. And, besides, I don't think EduCalc can be trusted to do anything properly. Your mileage may vary. -- Jan Brittenson bson@ai.mit.edu