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Board or card?

Discussion in 'Electronic Design' started by Jenalee K., Jun 8, 2006.

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  1. Jenalee K.

    Jenalee K. Guest

    Do you design boards as in "printed circuit board" or cards as in
    "add-on card"? English not being my mother tongue I wondered what the
    difference is, if any.

    Jenalee K
  2. Keith

    Keith Guest

    Usually cards plug into boards, as in "mother board" or "daughter
    card". A standalone may be called a board or card, depending on
    where one is from and who one works for.
  3. Rich Grise

    Rich Grise Guest

    They're pretty much interchangeable, depending on where the speaker went
    to school, the phase of the moon, the current price of tea in China, and
    so on. ;-)

  4. DJ Delorie

    DJ Delorie Guest

    "printed circuit board" means any board with a circuit printed/etched
    on it. It normally refers to the board itself, not including any
    components that might be soldered to it.

    "add-on card" is a specific application of printed circuit boards,
    where one board can be added (i.e. plugged in or on) some other board
    to increase functionality.
  5. John  Larkin

    John Larkin Guest

    People in the USA who design electronics usually say "pc board" or
    "PCB" or just "board". A PCB without parts is a "bare board."

    "Card" is more of a popular expression, but I might say "video card"
    even though I design boards! I guess that if I design it, it's a
    board, but if I buy it, it might be a board or a card. Silly.

    To make things worse, we refer to the things we design as "boards" but
    they plug into "card cages" or "crates." I've never heard the
    expression "board cage."

    Nobody ever accused English of making sense.

  6. Perhaps "card" was originally suggested by a deck of playing cards
    (small rectangles parallel to each other), and that's the origin of
    the term wrt cards plugged into a backplane or motherboard or in a
    cage. Never thought about it. Now, of course, we have other kinds of
    cards such as CF and SIM which typically don't have any similar cards
    nearby, but in the early days there were often tons of very similar
    cards in a computer, each containing a flip-flop or something like

    AH4 is characteristically vague, as on most issues of technology,
    whereas M-W says:

    6a: a flat stiff usually small and rectangular piece of
    material...bearing electronic circuit components for insertion into a
    larger electronic device (as a computer).

    Best regards,
    Spehro Pefhany
  7. Guest

    English almost always makes sense, when you know enough linguistics to
    be able to sort out the history of a particular word or phrase. By way
    of example, English words are spelled according to one out of just six
    sets of phoneme to grapheme translation rules, so all you need to know
    to spell an English word correctly is its historical origin ...

    This isn't all that helpful to most native speakers, let alone people
    learning English as a second language, but it remains true that English
    actually does make sense.
  8. Guest

    The term module could also be used. DEC used the term module for cards
    put into the sockets of their computers way back in the 60's.

  9. JeffM

    JeffM Guest

    "printed circuit board" means
    Some places use PWB (Printed Wiring Board)
    and PCA (Printed Circuit Assembly) to remove ambiguity
    between designations for bare and populated variants
    --avoiding the PCB moniker completely.
  10. Guest

    The comedian Rex Navarette did a routine on ESL Class ("English is a
    Stupid Language")... if you have more than one mouse, they are "mice".
    If there is more than one house, it's not "hice", it's a NEIGHBORHOOD.
  11. mc

    mc Guest

    They are all boards. If they are supplied individually to be inserted into
    another piece of equipment (e.g., a computer), they are cards.
  12. Rich Grise

    Rich Grise Guest

    It's not so much that it doesn't make sense, as that it's confusing,
    because we have at least two words for almost everything, and usually
    more than that - check a thesaurus some time. :)

    But that also means it's the richest, and most expressive, and if I
    may say so, the most powerful language on the planet, presumably because
    of its diverse origins.

    If the telephone had been invented by a German, it'd be the fernsprecher. ;-)
    [thanks to The Good Doctor, may he rest in peace.]

  13. I've found that many people believe their mother tongue is the
    richest, but that in fact this merely shows that they know little
    of other languages.

    Of the three languages I know well, each is every bit as expressive
    as any of the others, although usually not in quite the same way.
    This makes that, even though using each language may be easy enough,
    translation from one into another is still hard work.

    Jeroen Belleman
  14. Guest

    If the three are English, German and Dutch, keep in mind that Dutch and
    German split off from English around 800AD, and Dutch and German really
    didn't become separate languages until around 1500AD, when Martin
    Luther started writing theology in German.
    language. Chinese and Japanese would be better examples, but even there
    the only thing that is really difficult is the Japanese system of
    honorifics - you have to know where you are on the 32-levels in their
    pecking order, and where to put your audience in that range , but the
    real problem is in understanding how their society works, not the
    language itself.
  15. I wonder if language reflects the attributes of a society, or affects their
    way of doing things. The American version of English seems to be rather
    loose in its rules and diverse in its origins (and becoming more so, in
    popular usage), much as the society itself. People who speak and write with
    more rigidly defined languages perhaps are themselves also less "creative"
    in the sense of "breaking the rules". I am not putting any value judgment
    on this, as both ways of doing things have pros and cons. Moreover, those
    who abuse a language from ignorance or apathy are likely to be less
    constructively creative, and those who care enough to follow such rules as
    there are will probably have the discipline and intelligence to accomplish
    great things.

    My point is that possibly some aspects of a language may affect those who
    have grown up with it, while the general characteristics of a society may
    affect the evolution of their language.

  16. John  Larkin

    John Larkin Guest

    And both the details of a language and the rigidity of that language
    affect how the user thinks.

  17. Guest

    There is something of a hierarchy in definitions for many english words
    or classification systems, that may, or may not, be uniformly used by
    all speakers. In this case, a PCB is a broad class which includes the
    subset of "add-on card" (probably better phrased as "add-in card") of
    PCB's which are in some way or another, added to a larger system
    (either inserted in a motherboard or backplane/card cage).

    Think in terms of animal, and the many different subclassifications of
  18. I'd "think" that that would depend on whether you "think" in words,
    linearly, or "think" in greater contexts, with greater concepts, and
    only translate them into words when you need to express them to someone
    else. ;-) (who speaks the same language, of course. %-} </smartass>)

  19. Guest

    That sounds like the Sapir-Whorf hypothesis, which isn't all that
    fashionable. Nowadays cognitive anthropologists have nailed down some
    specific ways in which details of their language influence the way
    people behave, but it all seems to be pretty minor stuff.

    Their hypothesis doesn't work for me - when I'm in serious debugging
    mode I find it really difficult to produce a written or spoken
    description of what I'm doing, and have to disengage from working on
    the circuit before I can write about it.

    The very act of writing does give me a different (not necessarily
    better) insight into the circuit, which can sometimes be useful.
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