Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpmcaa!patrick
From: patrick@hpmcaa.HP.COM (Patrick Hawke)
Newsgroups: comp.sys.misc
Subject: Re: Zenith Double-Scan CGA & Windows?
Message-ID: <1730001@hpmcaa.HP.COM>
Date: 21 Feb 89 23:18:29 GMT
References: <36234@tut.cis.ohio-state.edu>
Organization: HP McMinville Division
Lines: 19

RE: Double Scan CGA & Windows 

I own a HP Portable Vectra CS20. It has a double scan CGA display similar to
the Zenith (640x400).  I use HP-Windows ( MS-Windows 2.03 ) with it.  HP 
supplies a driver for the LCD.  It appears to use the "Hercules" emulation
mode to get down to the single pixel resolution.

I have used both the CGA and the LCD mode with windows the difference is
about 3 to 4.  In LCD Mode the text used in a window is much smaller and
equivalent to using an EGA without color.  Text is displayed in approx.
23 lines in CGA Mode and 33 lines in LCD Mode.

I use the LCD mode when using the CS20 as a portable and I use the CGA mode
with a Magnavox CGA monitor when using as a desktop computer.

I hope this information helps....

...
PjH