From owner-freebsd-hackers Sun Sep 17 13:35:08 1995 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id NAA25201 for hackers-outgoing; Sun, 17 Sep 1995 13:35:08 -0700 Received: from hutcs.cs.hut.fi (root@hutcs.cs.hut.fi [130.233.192.2]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id NAA25192 for ; Sun, 17 Sep 1995 13:35:03 -0700 Received: from shadows.cs.hut.fi by hutcs.cs.hut.fi with SMTP id AA12999 (5.65c8/HUTCS-S 1.4 for ); Sun, 17 Sep 1995 23:34:53 +0300 Received: (hsu@localhost) by shadows.cs.hut.fi (8.6.10/8.6.10) id XAA01467; Sun, 17 Sep 1995 23:34:51 +0300 Date: Sun, 17 Sep 1995 23:34:51 +0300 Message-Id: <199509172034.XAA01467@shadows.cs.hut.fi> From: Heikki Suonsivu To: John Fieber Cc: freebsd-hackers@freefall.FreeBSD.org In-Reply-To: John Fieber's message of 17 Sep 1995 21:53:08 +0300 Subject: Re: atapi.c and wcd.c missing.... Organization: Helsinki University of Technology, Otaniemi, Finland Sender: owner-hackers@FreeBSD.org Precedence: bulk Marketing. If you look around, the devices are pretty competitive, thanks to Apple for creating a mass market, but the PC SCSI controllers are PCI NCR controllers cost $80-$100 here end-user. Probably they could cost even less, looking at the chip count on these things (1). SCSI is really hairy protocol, a good example of lousy design patched up several times to add larger block offsets, asynchronous writes and such things which should have been there from the beginning. So I would not completely put it on marketing; I can believe that design of a SCSI device can be a major pain. But imitating ancient MFM controllers is even worse than SCSI :-). -- Heikki Suonsivu, T{ysikuu 10 C 83/02210 Espoo/FINLAND, hsu@cs.hut.fi home +358-0-8031121 work -4513377 fax -4555276 riippu SN