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| Modern Means of Communication Chart |
Spectrum Chart - 478 : Modern Means of Communication
1. Mobile Phone - A mobile phone is a
portable telephone that can make and receive calls over a radio
frequency carrier while the user is moving within a telephone service
area. Mobile phones which offer these and more general computing
capabilities are referred to as smartphones.
2. Bluetooth – Bluetooth is a protocol
for wireless communication over short distances. Devices such as
mobile phones, laptops, PC's, printers, digital cameras and video game
consoles can connect to each other and exchange information. This is
done using radio waves. It can be done securely. Bluetooth is only
used for relatively short distances, like a few metres.
3. Internet - Internet is the global
system of inter connected computer networks that use the Internet
protocol suite (TCP/IP) to link billions of devices worldwide. It is
a network of networks that consists of millions of private, public,
academic, business, and government networks, linked by a broad array
of electronic, wireless and optical networking technology.
4. 3D TV - 3D television is television
that conveys depth perception to the viewer by employing techniques
such as stereoscopic display, multi-view display, 2D-plus-depth or
any other form of 3D display. 3D-ready TV sets are those that can
operate in 3D mode using one of several display technologies to
recreate a stereoscopic image.
5. Video Call – A video call is a
telephone with a video display, capable of simultaneous video and
audio for communication between people in real-time. Video call
service provided the first form of video telephony, later to be
followed by video conferencing, webcams and finally high-definition
telepresence. The widest deployment of video telephony now occurs in
mobile phones, as nearly all mobile phones supporting UMTS networks
can work as videophones using their internal cameras, and are able to
make video calls wirelessly to other UMTS users in the same country
or internationally.
6. Computer - A computer is a general
purpose device that can be programmed to carry out a set of
arithmetic or logical operations automatically. There are four main
processing steps in a computer and they are: inputting, outputting,
storage and processing. These four steps help the computer to work.
7. Video Conference – Video conferencing
is the conduct of a video conference by a set of telecommunication
technologies which allow two or more locations to communicate by
simultaneous two-way video and audio transmissions. With the
introduction of relatively low cost, high capacity broadband
telecommunication services, coupled with powerful computing
processors and video compression techniques, video conferencing has
made significant inroads in business, education, medicine and media.
8. Video Chat – Video chat comprises the
technologies for the reception and transmission of audio-video
signals by users at different locations, for communication between
people in real-time. Many online social networking sites provide the
facilities for video chatting. With the introduction of smartphones,
usage of video chatting has increased considerably.
9. Email - Electronic mail is an Internet
service that allows those people who have an e-mail address to send
and receive electronic letters. Those are much like postal letters,
except that they are delivered much faster than snail mail when
sending over long distances and are usually free.
10. Radio - Radio is a way to send
electromagnetic signals over a long distance, to deliver information
from one place to another. A machine that sends radio signals is
called a transmitter, while a machine that "picks up" the
signals is called a receiver. Radio was first created as a way to
send telegraph messages between two people without wires.
11. MMS (Multimedia Messaging Services) -
Multimedia Messaging Service (MMS) is a standard way to send messages
that include multimedia content to and from mobile phones over a
cellular network. Unlike text-only SMS, MMS can deliver a variety of
media, including up to forty seconds of video, one image, a slideshow
of multiple images or audio. The most common use involves sending
photographs from camera-equipped handsets.
12. Fax - Fax is the telephonic
transmission of scanned printed material, normally to a telephone
number connected to a printer or other output device. The original
document is scanned with a fax machine, which turns the contents into
a bitmap. Then the bitmap is sent through the telephone system. The
receiving fax machine reconverts the coded image, printing a paper
copy.
13. Dish Antenna - A satellite dish is a
dish-shaped type of parabolic antenna designed to receive
electromagnetic signals from satellites, which transmit data
transmissions or broadcasts, such as satellite television.
14. Satellite - A satellite is an
artificial object which has been intentionally placed into orbit.
Satellites are used for a large number of purposes. Common types
include military and civilian Earth observation satellites,
communications satellites, navigation satellites, weather satellites
and research satellites. The world's first artificial satellite, the
Sputnik 1, was launched by the Soviet Union in 1957.
15. Wireless Phone - Wireless phone
handsets exist which are not tethered to any particular base station,
but which also do not use traditional mobile phone networks. These
most commonly use digital technologies like DECT, 2.4 GHz unlicensed
spectrum or standards-based wireless LAN technology. The wireless
phone handset must connect to a wireless access point or base station
that supports the same technology. Also required is a call management
function and a gateway to the public switched telephone network
(PSTN).
16. Courier - Couriers are distinguished
from ordinary mail services by features such as speed, security,
tracking, signature, specialisation and individualisation of express
services, and swift delivery times, which are optional for most
everyday mail services. As a premium service, couriers are usually
more expensive than standard mail services, and their use is normally
limited to packages where one or more of these features are
considered important enough to warrant the cost.
17. Tablet - Tablet, is a mobile computer
with a touchscreen display, circuitry and battery in a single device.
Tablets come equipped with sensors, including cameras, a microphone
and an accelerometer. Tablets are typically larger than smartphones or
personal digital assistants with screens 7 inches (18 cm) or larger.
18. Satellite Phone – A satellite phone
is a type of mobile phone that connects to orbiting satellites
instead of terrestrial cell sites. They provide similar functionality
to terrestrial mobile telephones voice, short messaging service and
low-bandwidth internet access are supported through most systems.
19. PDA – A personal digital assistant
(PDA), also known as a handheld PC or personal data assistant, is a
mobile device that functions as a personal information manager. PDAs
have the ability to connect to the Internet. A PDA has an electronic
visual display, enabling it to include a web browser, all models also
have audio capabilities enabling use as a portable media player and
also enabling most of them to be used as mobile phones. Most PDAs can
access the Internet, intranets or extranets via Wi-Fi or Wireless
Wide Area Networks. Most PDAs employ touchscreen technology.
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