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The choice of the technology depends on the distance and speed of transmission. There are two types
of wireless technologies named Wi-Fi and Bluetooth.
Wi-Fi
Wi–Fi is the most popular wireless communication technology
used for homes, private business LANs and public hotspots.
A Wi-Fi enabled device such as a PC, video game console,
mobile phones or MP3 player can connect to the Internet
when it comes within the range of a wireless network. Wi-Fi
allows us to deploy local area networks without wires thus
reduces the cost of the network expansion.
Wi-Fi
Bluetooth
Bluetooth is a technology that enables wireless
communication between a low-power consumption devices
within a short range (1 meter, 10 meters, 100 meters). It
facilitate for different devices to communicate with each
other when they are in a specified range. The latest version
Bluetooth of bluetooth, Bluetooth 5.0 technology provides data
transfer speed up to 2 Mbps.
It provides a way to connect and exchange information between devices such as mobile phones,
telephones, laptops, printers, personal computers, GPS receivers (Global Positioning System)
through 2.4 GHz short range radio frequency bandwidth.
PROTOCOL
Protocol is a set of rules that governs the communication between the computers on a network.
Certain network protocols and standards are to be followed in order to ensure that your computer
can communicate with another computer over a network.
Different types of protocols used for different operations on the Internet are as follows:
HTTP—Hyper Text Transfer Protocol: It is a set of rules that defines how the Web pages transfer
information like document, file, image, video between computers over Internet.
HTTPS—Hyper Text Transfer Protocol Secure: It is secure version of HTTP. The information is
converted into code to prevent unauthorised access. Nowadays, most of the websites uses the
HTTPS protocol instead of HTTP.
FTP—File Transfer Protocol: It is a set of rules that allows file uploading and downloading from the
other computers over the Internet.
TCP/IP—Transmission Control Protocol/Internet Protocol: It is a network protocol that defines how
the information or messages are routed from one end of a network to the other.
Computer Networking 17

