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Bluetooth
Bluetooth is a technology that enables wireless communication
between low-power consumption devices within a short range
(1 meter, 10 meters, 100 meters). It facilitates communication
between different devices when they are within a required
range. The latest version of Bluetooth, Bluetooth 5.4 technology,
provides data transfer speed up to 2 Mbps.
Bluetooth
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
Just as red blood cells carry
Protocol is a set of rules that governs the communication oxygen and white blood cells
fight infections, data packets
between the computers on a network. Certain network deliver information while security
protocols and standards must be followed in order protocols protect a network.
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:
Hypertext Transfer Protocol (HTTP): It is a set of rules that defines how the web pages transfer
information like documents, files, images, videos between computers over Internet.
Hypertext Transfer Protocol Secure (HTTPS): It is secure version of HTTP. The information is
converted into code to prevent unauthorised access. Nowadays, most of the websites use the HTTPS
protocol instead of HTTP.
File Transfer Protocol (FTP): It is a set of rules that allows file uploading and downloading from the
other computers over the Internet.
Transmission Control Protocol/Internet Protocol (TCP/IP): It is a network protocol that defines
how the information or messages are routed from one end of a network to the other.
Post Office Protocol Version 3 (POP3): It is an Internet standard protocol that allows e-mail clients
to retrieve e-mail messages from an e-mail server.
Internet Message Access Protocol (IMAP): It is an e-mail protocol that stores e-mail messages on
a mail server and allows the user to view, access and manipulate the messages on the mail server
from their computer.
Simple Mail Transfer Protocol (SMTP): It is an e-mail protocol for sending e-mail messages across
the Internet.
Computer Networking 17

