Date   : Thu, 17 Jan 1985 21:01:18-MST
From   : Rick Conn <RCONN@SIMTEL20.ARPA>
Subject: Re: Unix for CP/M 2.1 or > on a z80

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.