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From: osan@cbnewsb.cb.att.com (andrew.vida-szucs)
Newsgroups: comp.arch,comp.misc
Subject: Re: Pneumatic computers (yes, air-pressure powered)
Keywords: Van Alyn,ancient
Message-ID: <1991Jun7.202331.19282@cbfsb.att.com>
Date: 7 Jun 91 20:23:31 GMT
References: <1991May24.231620.15367@digi.lonestar.org> <_1KBHZB@xds13.ferranti.com>
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In article <_1KBHZB@xds13.ferranti.com> peter@ficc.ferranti.com (peter da silva) writes:
>In article <1991May24.231620.15367@digi.lonestar.org>, crichmon@digi.lonestar.org (Charles Richmond) writes:
>> Fifteen or so years ago I heard that in the '60's there were
>> computers constructed that ran from air pressure.
>
>
>> I would like to learn about the construction and technology
>> involved with these pneumatic machines.

	Go to library and look under topic "Fluid Logic".  If said library
	is worth anything for scientific/engineering topics, you should be
	able to find *lots* of information.  Most if not all of it will
	relate specifically to hydraulics, but the principles are the same.

	Fluid logic is still in heavy use in industry, and probably will be
	for a long time to come.  It is used to control things like heavy
	machinery.  It has and/or 'gates' just as in silicon.  Interesting
	stuff.