[HN Gopher] I found an obscure political joke in the scan of a 1...
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       I found an obscure political joke in the scan of a 1971 IBM logic
       block manual
        
       Author : sohkamyung
       Score  : 62 points
       Date   : 2020-04-12 06:33 UTC (16 hours ago)
        
 (HTM) web link (twitter.com)
 (TXT) w3m dump (twitter.com)
        
       | draugadrotten wrote:
       | OMG, 1971, it's almost like finding a joke in a cave drawing!
        
         | simonblack wrote:
         | Now come on, 1971 wasn't all that long ago. I got married for
         | the first time that year. My car at the time had a rotary
         | engine and it cruised at 85mph on the road every weekend. Did I
         | mention that fuel was 31 cents a gallon? (And that was classed
         | as expensive.)
         | 
         | It really wasn't back in 'horse and buggy' days.
        
         | rfrey wrote:
         | Well, it's another piece of evidence to support the hypothesis
         | that our parents and grandparents had modern human-like
         | qualities. Don't discount it: these theories proceed by slow
         | aggregation of data, not one big-bang discovery.
        
       | kens wrote:
       | The manual has a diagram of a FET (field-effect transistor) with
       | the source, gate, and drain. Someone wrote on the diagram: Nixon
       | FET. Economic Drain. Water Gate, Unimpeachable Source.
        
         | jsjddbbwj wrote:
         | Thank you, very valuable comment.
        
           | throwanem wrote:
           | Yes, it is. Not everyone can see well enough to read text in
           | images. For those who have that difficulty, describing the
           | content of an image enables enjoyment of a joke that would
           | otherwise be inaccessible.
        
             | kens wrote:
             | Many people may not be aware that Twitter allows you to put
             | alt text on an image so people using assistive technologies
             | can get a description of the image. I encourage people to
             | use this feature.
        
               | throwanem wrote:
               | It's too bad their implementation of the feature is so
               | poor [1], requiring it to be first enabled via
               | accessibility settings [2] that most Twitter users
               | probably never look at.
               | 
               | [1]
               | https://www.cs.cmu.edu/~jbigham/pubs/pdfs/2019/twitter-
               | alt-t...)
               | 
               | [2] https://help.twitter.com/en/using-twitter/picture-
               | descriptio...
        
         | DonHopkins wrote:
         | He's tanned, rested, and ready [1], and now available in
         | convenient PEZ dispenser form factor [2].
         | 
         | "I'll give you my Millard Fillmore PEZ Dispenser when you pry
         | it from my cold, dead hands!" [3]
         | 
         | [1] https://louisianavoice.com/2015/07/02/taking-a-break-to-
         | addr...
         | 
         | [2] https://www.momopez.com/dispenser-detail.asp?ID=7583
         | 
         | [3] https://www.momopez.com/dispenser-detail.asp?ID=5954
        
         | userbinator wrote:
         | For those for whom those references are a bit before their
         | time:
         | 
         | https://en.wikipedia.org/wiki/Richard_Nixon
         | 
         | https://en.wikipedia.org/wiki/Watergate_scandal
        
       | sohkamyung wrote:
       | Found on Figure 1-20, page 1-11 of the manual [1]
       | 
       | [1] http://bitsavers.trailing-
       | edge.com/pdf/ibm/logic/SY22-2798-2...
        
         | raverbashing wrote:
         | This seems to be an older or non-standard FET depiction
         | 
         | The modern symbol has an arrow and doesn't have a closed
         | rectangle
        
           | kens wrote:
           | Yes, this was IBM's symbol for a FET. They had their own
           | nonstandard symbol for bipolar transistors too, three stacked
           | boxes labeled N, P, N, with a triangle on the emitter. (See
           | page 1-4 of the document above.) IBM also had their own logic
           | gate symbols: an OR gate looked like an AND gate, and an AND
           | gate looked like an op amp.
           | 
           | I came across the FET joke while looking up IBM transistor
           | symbols in response to TubeTime's thread on the history of
           | transistor symbols (which is an interesting thread you should
           | read):
           | https://twitter.com/TubeTimeUS/status/1249023089528078337
        
             | my_usernam3 wrote:
             | Why is that?
             | 
             | My "IBM is evil" bias leads me to guess they wanted to make
             | their own standard that people started using. Then charge
             | ridiculous license fees.
        
               | kens wrote:
               | I think several factors led to IBM's non-standard
               | symbols. The standards didn't exist at the beginning, so
               | different companies used different things. IBM also had
               | historical baggage, wanting to stay consistent over time.
               | In some ways IBM's symbols were better, for instance
               | making NPN vs PNP obvious. Finally, IBM was big enough
               | that they could do their own thing and train their own
               | people.
        
             | amelius wrote:
             | Indeed an interestng thread, thanks!
        
           | DanBC wrote:
           | I think it's a logic diagram, not an electrical symbol.
           | 
           | For anyone looking for an explanation of the newer symbol,
           | this is a nice source: https://www.petervis.com/electronics/M
           | OSFET_Symbol/MOSFET_Sy...
           | 
           | Arrows were used in 1975, see page 57: https://www.noao.edu/e
           | ts/Mechanical/Policies/ANSI%20Y32.2-19...
        
       | pachico wrote:
       | Who knows the amount of jokes being written now given the current
       | political landscape...
        
       | CalChris wrote:
       | I found an obscure dirty joke on p. 46 of the _Mac OS X Assembler
       | Guide._ [1]                 .fill 69,4,0xfeadface | put out 69
       | 0xfeadface's
       | 
       | [1]
       | http://personal.denison.edu/~bressoud/cs281-s07/Assembler.pd...
        
         | Zenst wrote:
         | AIX used to (probably still does) use DEADBEEF as a hex value
         | to clear memory out.
        
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       (page generated 2020-04-12 23:00 UTC)