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From: Rick Conn 
Newsgroups: net.micro.cpm
Subject: Re: Unix for CP/M 2.1 or > on a z80
Message-ID: <7502@brl-tgr.ARPA>
Date: Fri, 18-Jan-85 06:56:38 EST
Article-I.D.: brl-tgr.7502
Posted: Fri Jan 18 06:56:38 1985
Date-Received: Mon, 21-Jan-85 01:51:18 EST
Sender: news@brl-tgr.ARPA
Organization: Ballistic Research Lab
Lines: 6

You're quite right about ZCPR3 on 180K disks.  Some of the Echelon
newsletters talk about this, and one gives a breakdown of the disk overhead.
There is some discussion about reducing this overhead by being selective about
the features; overhead can drop to as little as 60K for some applications.
But if you want everything, there is a price to pay.
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