Educational TEchnology 2

2.  Hypermedia includes more than
one media:
Text
Graphics
Audio
Animation
Video clips

3.  Since only virtual learning activity
takes place, it is important from
the standpoint of the teacher to
optimize the learning process by
identifying the characteristics of
media application, as well as the
advantages and limitations of
such an application.

4.  Given all its capabilities, hypermedia still
does not replace life’s experiences and
learning from nature and life.
 This saying that information and
communication technology cannot replace
the teacher altogether.
 Note that even technologists admit that the
computer has an IQ of zero and depends on
what man can input or make of it.
 GIGO or garbage in, garbage out is the very
first principle that should be remembered
about the computer.

14.  Stands for "Garbage In, Garbage Out." GIGO is a computer
science acronym that implies bad input will result in bad output.
 Because computers operate using strict logic, invalid input may
produce unrecognizable output, or "garbage." For example, if a
program asks for an integer and you enter a string, you may get
an unexpected result. Similarly, if you try to open a binary file in
a text editor, it may display unreadable content.
 GIGO is a universal computer science concept, but it only applies
to programs that process invalid data. Good programming
practice dictates that functions should check for valid input
before processing it. A well-written program will avoid
producing garbage by not accepting it in the first place.
Requiring valid input also helps programs avoid errors that can
cause crashes and other erratic behavior.
 NOTE: Because the related terms FIFO and LIFO are pronounced
with a long "i," GIGO is typically pronounced "guy-go" (not gih-
go). This also helps avoid confusion with the prefix "giga," which
is pronounced with a soft "i."