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Wi-Fi
Wi–Fi (Wireless Fidelity) is the most popular wireless
communication technology used for homes, private
businesses, LANs, and public hotspots. A Wi-Fi enabled
device, such as a PC, video game console, mobile phone,
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, which reduces
the cost of network expansion.
Bluetooth
Bluetooth is a technology that enables wireless
communication between low-power consumption devices
within a short range (1 meter, 10 meters, 100 meters).
The latest version of Bluetooth, Bluetooth 5.0 technology,
provides data transfer speeds up to 2 Mbps.
It provides a way to connect and exchange information between devices such as mobile phones,
telephones, laptops, printers, personal computers, and GPS receivers (Global Positioning
System) through a 2.4 GHz short-range radio frequency bandwidth.
PROTOCOL
Protocol is a set of rules that govern the communication between computers on a network.
Certain network protocols and standards must 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:
HTTP – Hyper Text Transfer Protocol: It is a set of rules that define how Web pages
transfer information like documents, files, images, and videos between computers over
the Internet.
HTTPS – Hyper Text Transfer Protocol Secure: It is a secure version of HTTP. The information
is converted into code to prevent unauthorised access. Nowadays, most websites use the
HTTPS protocol instead of HTTP.
FTP – File Transfer Protocol: It is a set of rules that allow files to be uploaded and downloaded
from other computers via the Internet.
TCP/IP – Transmission Control Protocol/Internet Protocol: It is a network protocol that
defines how information or messages are routed from one end of a network to the other.
POP3 – Post Office Protocol Version 3: It is an Internet standard protocol that allows e-mail
clients to retrieve e-mail messages from an e-mail server.
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