Subject:
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Re: mechanical XOR and Half Adder
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Newsgroups:
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lugnet.technic
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Date:
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Sun, 12 Mar 2006 22:28:40 GMT
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Viewed:
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7134 times
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In lugnet.technic, Jordan Bradford wrote:
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In lugnet.technic, Martin Howard wrote:
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In lugnet.technic, Ross Crawford wrote:
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In lugnet.announce.moc, Martin Howard wrote:
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Hi all,
I’ve finally updated my mechanical logic gate pages with a couple of new
(ish) creations. The XOR gate and the Half Adder. You can find them by
going to http://www.goldfish.org.uk/xor.html and
http://www.goldfish.org.uk/halfadder.html.
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Nice work Martin! I’d point out a typo in the text for your 1/2 adder
though - you say “1+1 = 1, carry 1”, the sum should be 0 :)
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Thanks for the comments and pointing out the typo.
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Well, technically, 1 + 1 = 2, or in binary, 1 + 1 = 10. The sum isn’t 0,
the S output is 0.
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Not in fixed digit maths. In a 1 digit binary adder, 1+1 = 0, just as in a 4
digit decimal adder 5000+6000 = 1000.
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This stuff is cool. I like your mechanical logic gates better than the
pneumatic ones I’ve seen. Yours are definitely cheaper to build.
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LOL definitely.
ROSCO
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Message is in Reply To:
 | | Re: mechanical XOR and Half Adder
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| (...) Well, technically, 1 + 1 = 2, or in binary, 1 + 1 = 10. The sum isn't 0, the S output is 0. ‹/nitpicks› This stuff is cool. I like your mechanical logic gates better than the pneumatic ones I've seen. Yours are definitely cheaper to build. (18 years ago, 10-Mar-06, to lugnet.technic, FTX)
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