Path: utzoo!mnetor!uunet!husc6!psuvax1!vu-vlsi!cbmvax!daveh From: daveh@cbmvax.UUCP (Dave Haynie) Newsgroups: comp.sys.mac Subject: Re: Will DMA ever be used in the Mac? Message-ID: <2942@cbmvax.UUCP> Date: 14 Dec 87 19:50:15 GMT References: <76000065@uiucdcsp> Organization: Commodore Technology, West Chester, PA Lines: 23 in article <76000065@uiucdcsp>, gillies@uiucdcsp.cs.uiuc.edu says: > Nf-ID: #R:iuvax.UUCP:5094:uiucdcsp:76000065:000:1583 > > (1) Apple wants all its peripherals to work with all its computers. > .... Apple has settled on SCSI so that all its disks will be > hardware interchangeable. So when you sell (or junk) that Macintosh > 128 and buy a Mac II, you don't have to throw away that disk drive OR > modem. No good. We use Mac compatible hard disk drives on Amigas with DMA driven SCSI all the time. SCSI is a reasonably standard interface, and Mac compatible SCSI a more standard subset of it (at least these days). SCSI tells you only how data gets off the hard disk drive, not how that data ultimately winds up in the computer's memory. The good news is that is Apple ever decided to give you a DMA driven SCSI port, all the currently existing SCSI peripherals would work with it, only faster. > Don Gillies {ihnp4!uiucdcs!gillies} U of Illinois > {gillies@p.cs.uiuc.edu} -- Dave Haynie Commodore-Amiga Usenet: {ihnp4|uunet|rutgers}!cbmvax!daveh "The B2000 Guy" PLINK : D-DAVE H BIX : hazy "I can't relax, 'cause I'm a Boinger!"