- For
English speaking people,
this is information:
The car is red
- For English-only speaking people,
the following
may not
be information:
El carro es rojo
Why ?
-
It is
only
information if you can
decode it
(i.e:
use it !!!!)
Otherwise, it's jibberish.
-
It is
only
information if you can
decode it
(i.e:
use it !!!!)
- Case in point:
For most people, the following text is jibberish (except if you can read Demotic script)
- Fact:
- Information is always represented through an "encoding" scheme
- Encoding scheme:
- Encoding scheme =
a set of rules
on how to
interprete a set of
symbols
The set of symbols is called a code
- Encoding scheme =
a set of rules
on how to
interprete a set of
symbols
- Code:
- Code = a representation scheme that is agreed by a group of entities
- Example of a code:
- The English alphabet !!!
Example:
A, B, C, ... (These symbols are meaningless to a person living in the Amazon jungle !)
- The English alphabet !!!
- Recall: Code
- A code is a prescribed (mutually agreed) representation
There are many different codes used in the world... (and more are being developed....)
- Another example
of a
code:
the Morse code
Fact:
- The information represented by
Morse code
is often "store" in
sound/electrical waves !!!
Example: tapping "S O S" - 3 short taps, 3 long taps, 3 short taps
- The information represented by
Morse code
is often "store" in
sound/electrical waves !!!