1. raks_universe

    Thread Starter Active Member

    Mar 15, 2009
    67
    0
    i am new to this electronic signal topic
    please give
    1.introduction to electronic signal in easiest way
    2. necessity of electronic signals
    3.HISTORY of electronic signal
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    First, define electronic singal, there are many types, such as RF (then we get into modulation, where there are lots of variations), optical, electrical, audible, etc. Ever hear of smoke signals?

    Generally a signal is a change of state in something, which sends inforation to somewhere else. It can also be a steady state (no change), since this too is a form of information.

    An electronic signal (electrical) is still a change of state. The exact method is a protocol, and that is truely vast.

    As I'm writing this, it occurs to me,

    This sounds a lot like a homework assignment.
     
  3. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
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