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Wi-Fi

                 It refers to Wireless Fidelity, which lets you connect to the
                 Internet without any wired connection from your PC. It is a
                 popular form of wireless connection as it does not require
                 cables.

                 It can be used to get connected through a variety of devices
                 like laptops, digital cameras, smartphones, gaming consoles,
                 etc. To connect to a Wi-Fi network a hotspot is required.
                 The hotspot acts as a gateway to the Internet, you need to
                 connect to hot-spot to be able to connect to the Internet.
                                                                                                 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 of bluetooth, Bluetooth 5.0 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.

                  i +  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 use
                    the HTTPS protocol instead of HTTP.
                 •   FTP - File Transfer Protocol: It is a set of rules that allow file uploading and downloading
                    from 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.
                 •   POP3 - Post Office Protocol Version 3: It is an Internet standard protocal that allows e-mail
                    clients to retrieve e-mail messages from an e-mail server.
                 •   IMAP - Internet Message Access Protocol:  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.
                 •   SMTP - Simple Mail Transfer Protocol: It is an e-mail protocol for sending e-mail messages
                    across the Internet.


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