From mboxrd@z Thu Jan  1 00:00:00 1970
From: usotsuki@buric.co (Steve Nickolas)
Date: Mon, 23 Apr 2018 19:57:44 -0400 (EDT)
Subject: [TUHS] /dev/drum
In-Reply-To: <9a5e49bb-f235-4b87-445b-1532d8facd2f@update.uu.se>
References: <mailman.125.1524526228.3788.tuhs@minnie.tuhs.org>
 <9a5e49bb-f235-4b87-445b-1532d8facd2f@update.uu.se>
Message-ID: <alpine.BSF.2.02.1804231956010.5236@frieza.hoshinet.org>

On Tue, 24 Apr 2018, Johnny Billquist wrote:

> Which is also why the file system for RSX (ODS-1) placed the index file 
> (equivalent of the inode table) at the middle of the disk by default.
>
> Not sure if Unix did that optimization, but I would hope so. (Never dug into 
> that part of the code.)

That reminds me of the Apple ][, whose original DOS put the directory and 
bitmap table on track 17 (0-indexed) on a 35-track floppy disk.

-uso.