Explanation : Instructional Software (IS) programs
include pictures, sounds, animations, and
other various stimuli used to enhance the
development of skills such as reading, writing
and problem solving.
Radio talk is instructional software as it gives
sound inputs for skill development
Audio podcast: a series of episodes streamed
or downloaded by the end user over the
Internet
Printed material or book
Edusat : satellite built exclusively for serving
the educational sector