Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA
Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!genrad!mit-eddie!godot!harvard!seismo!brl-tgr!tgr!munck@mitre-bedford.ARPA
From: munck@mitre-bedford.ARPA
Newsgroups: net.micro
Subject: Re: Old and New computer noises
Message-ID: <9235@brl-tgr.ARPA>
Date: Thu, 14-Mar-85 21:23:03 EST
Article-I.D.: brl-tgr.9235
Posted: Thu Mar 14 21:23:03 1985
Date-Received: Sun, 17-Mar-85 01:38:15 EST
Sender: news@brl-tgr.ARPA
Lines: 13

>>different instructions caused the radio to produce different noises...
> when I'm doing CPU-intensive stuff like number-crunching, it makes sounds
> almost like tropical birds...

An interesting thought to juxtapose with the problem of software piracy.
A package could do its processing so as to "broadcast" a unique serial
number built into it by the software manufacturer (say be re-arranging
the order of loading modules). One can imagine unmarked vans cruising
the industrial parks listening for identical signals from two or more
CPUs simultaneously, indicating piracy.  Or maybe Microsoft or Lotus would
put up a satellite.  TEMPEST-qualified pcs cost a fortune, so real
pirates may need to wrap their systems in aluminum foil.
           -- Bob Munck, MITRE