Ancient forms of communication included kentongan (gongs) used to convey messages and indicate times, smoke signals used by Native American tribes, and epigraphy using palm leaves to write letters. Modern communication methods discussed include the telephone invented by Alexander Graham Bell, television which has evolved from black and white to color screens, radio used to transmit signals and for broadcasting, and the internet which started as a computer networking technology and led to the creation of the World Wide Web in 1989.

1. ANINDITA SEKARKINANTI
MEANS OF COMMUNICATION AND
INFORMATION TECHNOLGY
SMP 73
7A
ANINDITAKINANTI.BLOGSPOT.COM

2. ANCIENT COMMUNICATION
• KENTONGAN
Kentongan has been used to give information to the people
when something happened. Sign or code used was different.
Kentongan was also used as a tool for night patrol and time
indication. Big kentongan (bedug) was used a sign that praying
(salat) time has come.

3. • SMOKE
This media was very popular among Indian tribe
in America. This communication tool can also be
used to send secret information to a friend or
foe.

4. • Epigraphy and Palmyra Palm
A media commonly used to write letters in the
past was dominated by palmyra palm.

5. MODERN COMMUNICATION MEDIA
• Telephone and Cellphone
Phone invented by Alexander Graham Bell in 1876. Now,
cellphone is equipped with a digital camera, an MP3 player,
video, and a lot of interesting game. Basically functioning to
make an receive a short message (short message service: SMS)

6. • Television
Television invented by Paul Nipkow in 1883. Along with the
advance of technology, television has envolved significantly. In
the past, we could only enjoy watching a black and white
television, but today we can enjoy watching a color television.
Television screen has also been through some developments
from screen to flat screen.

7. • Radio
Radio is a product of technology that is used for signal
transmission in modulation and electromagnetic radiation
(electromagnetic waves). There are a lot kinds of radio, including
wireless network, mobile communication of all kinds, and also
radio broadcasting.

8. • Internet
The development of the internet started when computer
networking technology was created in around 1960. In 1989, Tim
Barnes, a computer expert from England, created World Wide
Web, a program that allows sound, picture, movie, and music to
appear and be accessed by anyone through the Internet.