From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753654AbXDREvf (ORCPT ); Wed, 18 Apr 2007 00:51:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753665AbXDREvf (ORCPT ); Wed, 18 Apr 2007 00:51:35 -0400 Received: from vms048pub.verizon.net ([206.46.252.48]:63706 "EHLO vms048pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753635AbXDREvf (ORCPT ); Wed, 18 Apr 2007 00:51:35 -0400 Date: Wed, 18 Apr 2007 00:51:27 -0400 From: Gene Heskett Subject: Re: floppy.ko In-reply-to: <46259E18.6010003@zytor.com> To: "H. Peter Anvin" Cc: lkml , Alain.Knaff@poboxes.com Message-id: <200704180051.28602.gene.heskett@gmail.com> Organization: Organization? very little MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7bit Content-disposition: inline References: <200704170036.00605.gene.heskett@verizon.net> <200704172312.49787.gene.heskett@gmail.com> <46259E18.6010003@zytor.com> User-Agent: KMail/1.9.6 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 18 April 2007, H. Peter Anvin wrote: >Gene Heskett wrote: >> On Tuesday 17 April 2007, H. Peter Anvin wrote: >>> Gene Heskett wrote: >>>> I have the usual fd0, a 3.5" 1.44 drive, and fd1, a 5.25" 720k drive in >>>> this machine, both are enabled in the bios with the correct types being >>>> set there. >>> >>> A 5.25" 720k drive?! That's not a PC standard drive -- 5.25" came in >>> 180K, 360K and 1200K varieties, whereas 3.5" came in 720K, 1440K and >>> 2880K varieties (not including superfloppies.) >>> >>> -hpa >> >> It sure is a std drive, Peter, although many of the later ones that were >> set up as 1.2 megger's by the pc crowd who have access to a 500 kilobaud >> controller, could have the 360 rpm spindle jumper'd back to 300 rpm, and >> when fed with a 250 kilobaud controller (WD177x/277x/279x family, which >> includes the Fujitsu MB8877), they are perfect 720k devices and are >> spec'ed that way by the makers. Many of the older full height Tandon >> 100-4's could also step quite a few tracks closer to the spindle & I ran >> them as 765k drives by using 84 tracks. I even have a chinon that will >> make 86 tracks most of the time. >> >> These were all quite common in the middle '80's. Before your time I >> suspect. > >I know they were quite common, but they were not a standard *PC* >accessory. (FWIW, 1200K PC drives could also read/write 720K, which >allowed you to use non-HD-rated media.) > Chuckle, see how you are? You keep quoting the 'PC', and 20 years ago the PC term included a lot of machinery that didn't always run M$ code. TRS-80 Color Computers and such, or Apple II, Commode-door etc. >(And no, this wasn't "before my time".) Figure of speech, Peter, considering that I could be the oldest subscriber to this list. I've been around since '34. > -hpa -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Randal can write one-liners again. Everyone is happy, and peace spreads over the whole Earth. -- Larry Wall in <199705101952.MAA00756@wall.org>