Page 14 - ModularV1.1 _c8_flipbook
P. 14

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 facilitates for different devices to communicate with each other when they
                  are in a required range. The latest version of bluetooth, Bluetooth 5.0 technology
                  provides data transfer speeds 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
                  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 other computers 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 defines how the Web pages

                     transfer data over the Internet.
                      HTTPS  – Hyper Text Transfer Protocol  Secure: It is a secure version of HTTPS. 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 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.
                      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.
                      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.
                     Recap


                          A computer network means a system of interconnected computers.

                           The components needed for a network are Network Interface Card, networking cable, hub or
                         a switch and router.
                          Various types of topologies used in a network are bus, star, tree, ring and mesh.
                           There are two types of computer network architectures – peer-to-peer network and client-
                         server network.

                           Wi-Fi is the most popular wireless communication technology used for homes, private business
                         LANs and public hotspots.




                  12      Modular (Ver. 1.1)-VIII
   9   10   11   12   13   14   15   16   17   18   19