They're not? ;-)

  ----- Original Message ----- 
  From: Stephen Adolph 
  To: m...@bitchin100.com 
  Sent: Thursday, April 16, 2020 3:56 PM
  Subject: Re: [M100] Video adapter.


  Duh!  Yes DE! Same issue with coding.  Jnz and jmp are not the same 

  On Thursday, April 16, 2020, Mike Stein <mhs.st...@gmail.com> wrote:

    DE-15HD
      ----- Original Message ----- 
      From: Stephen Adolph 
      To: m...@bitchin100.com 
      Sent: Thursday, April 16, 2020 3:21 PM
      Subject: Re: [M100] Video adapter.


      thanks that is interesting.  so a VGA connector is DB-15.   




      On Thu, Apr 16, 2020 at 3:05 PM Tom Wilson <wilso...@gmail.com> wrote:

        On Thu, Apr 16, 2020 at 11:46 AM RETRO Innovations 
<go4re...@go4retro.com> wrote:

          On 4/16/2020 11:17 AM, Tom Wilson wrote:
          > Does the kit just not have a serial connector, or is it a DB-25?
          >
          > (fun trivia fact... there is no DB-9. The “B” refers to the size of 
          > the shell, and the 9 pin D-Sun is axtually an E size. So a 9 pin 
port 
          > is DE-9. But since so many people say it wrong, manufactures just 
          > incorrectly call then DB-9.)

          Which makes it a redundant statement, right:  DE-9 = D(9)-9 :-)

          Jim




        Not really. DE doesn't mean "9 pin." DE is the physical size of the 
shell. 9 is the number of pins. Both parts of the name are required to 
correctly specify the connector. 
        A VGA port is the same size as a 9-pin serial port, but it has 15 pins 
on three rows. So it's a DE-15HD. (As you'd expect, HD means "High Desnsity".)
        A game port (the old school 15-pin one) is actually a DA shell, so it's 
DA-15. 


        So this can cause confusion if you tell someone you need a "DB-15" 
connector, since there are two D-Sub connectors that commonly use 15 pins - the 
DE-15HD VGA connector and the DA-15 






        Here's the size chart from Wikipedia. 







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