Computer Acronyms

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DB Connector
What does DB Stand for in the popular DB-Connector port-name. Can I have a list of some of this acronyms?
ASKED: July 8, 2009  4:28 PM
UPDATED: July 9, 2009  6:48 PM

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Most of the common connectors you use to connect networking equipment use DB type connectors.

I always understood that the ‘D’ was because the shape of the connector is like a letter D.

The ‘B’ I think is used to show the number of pins, as are other letters between A and F, but commonly everyone uses ‘B’ and none of the other letters which would be more correct for some sizes of connector.

The number at the end is also the total number of pins possible (some may be missing or not connected).

So in common use, a DB-25 is the good old 25-pin RS-232 connector you find on old modems, a DB-15 is the X.21 connector (and that games port on your PC), and a DB-9 is the 9 pin serial connector used on PC serial ports such as laptops, or the PC end of the Cisco console cable.

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  • JennyMack
    Hi Yatom, Welcome to IT Knowledge Exchange. Usually, "DB" stands for "database". I find that Whatis is a great resource for looking up acronyms and terms related to IT; you should check it out. Thanks, Jenny Community Manager
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  • SpyMoose
    The only thing I can really come up with is "Database" as well. i hate to ask but could you give us an example of where you are pulling this information? http://www.all-acronyms.com/tag/network doesnt have a listing for DB under port or connector reference but the site may help you.
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  • Yatom
    ODBC for DB connectors? ODBC - open database connectivity Per wikipedia: In computing, Open Database Connectivity (ODBC) provides a standard software API method for using database management systems (DBMS). The designers of ODBC aimed to make it independent of programming languages, database systems, and operating systems.
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  • Teicneoir
    If you are talking about the ends of serial and parallel cables, than BlankReg is correct. It is officially called a D-subminiature but it is commonly called a DB connector and gets it name from the D shape of the connector. (see http://www.cablestogo.com/resources/db.asp)
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