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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: ancient OS history, ARM is sort of channeling the IBM 360
Date: Tue, 25 Jun 2024 07:00:07 -0000 (UTC)
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On Tue, 25 Jun 2024 08:49:43 +0200, Terje Mathisen wrote:

> Even on (MS)DOS it was easy to saturate the hard drive from a single
> program, you just needed large enough (i.e. at least a full track each)
> buffers.

That sounds more like a peak thing than a sustained thing. In between 
filling the buffers, the disk is left idle. So on average you are 
operating well below theoretical disk capacity.

After all, MS-DOS never suppported async I/O.