2. NETWORKING AND COMMUNICATION || VIDEO 1 || TOPOLOGY
AND PLACEMENT OF DEVICES|| GET 100% MARKS IN CS : (7 minutes) :Click Here
CLASS 12 CS COMMUNICATION AND NETWORK CONCEPTS PART 1 IN HINDI:
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Evolution of Networking: ARPANET,
Internet, Interspace Different ways of sending data across the network with
reference to switching techniques (Circuit and Packet switching).
Data
Communication terminologies: Concept of Channel, Bandwidth (Hz, KHz, MHz)
and Data transfer rate (bps, Kbps, Mbps, Gbps, Tbps).
Transmission
media: Twisted pair cable, coaxial cable, optical fiber, infrared, radio
link, microwave link and satellite link.
Network devices: Modem, RJ45 connector, Ethernet Card, Router,
Switch, Gateway, wifi card.
Network Topologies and types: Bus,
Star, Tree, PAN, LAN, WAN, MAN.
Network
Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, SMTP, POP3 Remote
Login (Talent), and Internet Wireless/Mobile Communication protocol such as
GSM, CDMA, GPRS, and WLL.
Mobile Telecommunication Technologies : 1G, 2G, 3G and 4G; Mobile
processors;
Electronic mail protocols such
as SMTP, POP3
Protocols for Chat and Video
Conferencing VOIP
Wireless technologies such as
Wi-Fi and WiMax
Network Security Concepts:
Threats
and prevention from Viruses, Worms, Trojan horse, Spams
Use of Cookies, Protection using
Firewall, https;
ndia
IT Act, Cyber Law, Cyber Crimes, IPR issues, hacking.
Introduction
To Web services: WWW, Hyper Text Markup Language (HTML), Extensible Markup
Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL;
Website, Web browser, Web Servers; Web Hosting, Web Scripting – Client side (VB
Script, Java Script, PHP) and Server side (ASP, JSP, PHP), Web 2.0 (for social
networking)
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