Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!seismo!rutgers!ames!ptsfa!hoptoad!academ!uhnix1!nuchat!steve
From: steve@nuchat.UUCP (Steve Nuchia)
Newsgroups: comp.arch
Subject: Re: An old fashioned memory technology, CRT's, how'd they work?
Message-ID: <272@nuchat.UUCP>
Date: Thu, 30-Jul-87 01:01:12 EDT
Article-I.D.: nuchat.272
Posted: Thu Jul 30 01:01:12 1987
Date-Received: Thu, 6-Aug-87 07:17:05 EDT
References: <602@madvax.UUCP> <3490004@wdl1.UUCP>
Organization: Public Access - Houston, Tx
Lines: 9
Summary: williams tube visible bits

In article <3490004@wdl1.UUCP>, bobw@wdl1.UUCP (Robert Lee Wilson Jr.) writes:
> The system there had the tubes covered so I can't speak to the
> visibility of the bits, but based on how it worked they _ought_ to
> have been quite visible except that the sense electrode over the
> screen may have been opaque.

As I recall from Hodges' biography of Turing (_The_Enigma_) the bits
were made visible for debugging and/or entertaining the masses by
attaching an ordinary CRT to the williams tube circuitry in parallel.