INFORMATION ERA (1960 - PRESENT)

RADIO - is the technology of using radio waves to convey information, such as sound, by modulation some property of electro-magnetic energy waves transfered through place.

TELEVISION - is a telecommunication medium used for transmitting sound with moving pictures in monochrome, or in color, and in two or three dimensions.

PERSONAL COMPUTER - it's size capabilities, and novel sale price make it beneficial for individuals. It is envisioned to be worked directly by an end-user.

MOBILE PHONE - is a portable telephone which can produce and receive calls over a radio frequency carrier.

INTERNET - is the world wide system of unified computer networks.