1. Composed by DUONG TO DUNG, FEB 2019
MIS COURSE: CHAPTER 7 TELECOMMUNICATIONS, THE INTERNET, AND WIRELESS TECHNOLOGY
Composed by DUONG TO DUNG,
FEB 2019

2. CONTENT
What are the principle components of telecommunications networks and key networking technologies?
What are the different types of networks?
How do the Internet and Internet technology work and how do they support communication and e-business?
What are the principal technologies and standards for wireless networking communication, and Internet access?

3. What are the principle components of telecommunications networks and key networking technologies?
Increasingly, voice and data communication, as well as Internet access, are taken place over broadband wireless platforms. WHAT IS A COMPUTER NETWORK? 2++ connected computers. + Network Operating System (NOS): routes and manages comm. on the network and coordinate network resources. It can reside on every computer in the network, or can reside primarily on a dedicated server computer for all the applications on the network.

4. What are the principle components of telecommunications networks and key networking technologies?
NIC: Network Interface Card
Components of a simple computer network

5. What are the principle components of telecommunications networks and key networking technologies?
+ Server: a computer on the network that performs important network functions for client computers + Switch & Hub: acting as a connection point between the computers. Hubs are very simple devices that connect network components, sending data in packets to all other connected device. Switches are more intelligent than hubs that can filter and forward data to a specified destination on the network. + A router: is a comm. processor used to route packets of data through different networks, ensuring that the data sent get to the correct address.

6. What are the principle components of telecommunications networks and key networking technologies?

7. What are the principle components of telecommunications networks and key networking technologies?
Networks in Large Companies

8. What are the principle components of telecommunications networks and key networking technologies?
KEY DIGITAL NETWORKING TECHNOLOGIES + Client/Server Computing + Packet Switching + The Development of widely used comm. standards * Client/Server Computing: is a distributed computing model in which some of the processing power is located within small, inexpensive client computers. The server sets the rules of comm. for the network and provides every client with an address so others can find it on the network. The Internet is based on client/server computing. * Packer Switching: a method of slicing digital messages into parcels called packets, sending the packets along different comm. paths as they become available, and then ressembling the packets once they arrive at their destination.

9. KEY DIGITAL NETWORKING TECHNOLOGIES
What are the principle components of telecommunications networks and key networking technologies?
KEY DIGITAL NETWORKING TECHNOLOGIES
+ The Development of widely used comm. standards
* TCP/IP: Transmission Control Protocol / Internet Protocol
A protocol is a set of rules and procedures governing transmission of info. between 2 points in a network.
TCP/IP uses a suite of protocols, the main ones being TCP and IP. TCP handles the movement of data between computers, establish a connection between computers, sequences the transfer of packets, and acknowledges the packets sent. IP is responsible for the delivery of packets and includes the disassembling and reassembling of packets during transmission.

10. What are the different types of networks?
SIGNALS: DIGITAL vs. ANALOG + Analog: continuous waveform that passes through a comm. medium and has been used for voice comm. Common devices: tel. handset, speakers, Ipod earphone + Digital: discrete, binary waveform + Modem: modulator-demodulator: converts digital signals to analog signals and vice versa. W/o modem, computers could not communicate with one another using analog networks.

11. What are the different types of networks?
TYPES OF NETWORKS + LAN (Local Area Network) * Peer-to-peer architecture: workgroup network mode, a small group of computers can share resources (files, devices) over the network w/o a dedicated server. + WAN (Wide Area Network) + MAN (Metropolitan Area Network): a network that spans a metropolitan area, usually a city and its major suburbs.

12. What are the different types of networks?
TRANSMISSION MEDIA AND TRANSMISSION SPEED + Bandwidth: transmission speed (bps – bit per second) + Trans. Media: twisted pair wire, coaxial cable, fiber-optic cable, and wireless transmission media.

13. What are the different types of networks?
TRANSMISSION MEDIA AND TRANSMISSION SPEED + Trans. Media: twisted pair wire, coaxial cable, fiber-optic cable, and wireless transmission media.

14. How do the Internet and Internet technology work and how do they support communication and e-business?
INTERNET + Internet: the global network of networks, owned by no one. + ISP: Internet Service Provider: a commercial org. with a permanent connection to the Internet that sells temporary connections to retail subscribers. INTERNET ADDRESSING AND ARCHITECTURE + IP: Internet is based on the TCP/IP networking protocol suite. Every computer on the Internet is assigned a unique IP address (currently 32-bit number) < > + Domain Name System (DNS): converts domain names to IP addresses.

15. How do the Internet and Internet technology work and how do they support communication and e-business?

16. INTERNET NETWORK ARCHITECTURE
The Internet backbone connects to regional networks.
Network access points (NAPs) and metropolitan area exchanges (MAEs) are hubs where the backbone intersects regional and local networks and where backbone owners connect with one another.

17. How do the Internet and Internet technology work and how do they support communication and e-business?
INTERNET:
+ Carried over transcontinental high-speed backbone networks, generally 155Mbps – 2.5Gbps, typically owned by long distance telephone companies (called Network Service Providers) or by national gov.
+ Local connection lines are owned by regional telephone and cable television companies  ISPs
+ No one owns the Internet. It has no formal management.
However, worldwide Internet policies are established by a number of professional org. & gov. bodies. Including the IAB (Internet Architecture Board - architecture), ICANN (Internet Corporation for Assigned Names and Numbers - DNS), W3C (WWW Consortium – programming languages)

18. How do the Internet and Internet technology work and how do they support communication and e-business?
THE FUTURE INTERNET: IPv6 and INTERNET 2 + IPv6: run out of IP address (IPv4), so IPv6 – 128-bit addresses, more than a quadrillion possible unique addresses (1,000,000,000,000,000 (1015)). IPv6 is not compatible with the existing Internet addressing system, so the transition to the new standard will take years

19. How do the Internet and Internet technology work and how do they support communication and e-business?
THE FUTURE INTERNET: IPv6 and INTERNET 2 + INTERNET 2: is an advanced networking consortium representing over 350 U.S. universities, private businesses, and government agencies working with 66,000 institutions across the U.S. and international networking partners from > 100 countries. High-capacity 100Gbps network.

20. How do the Internet and Internet technology work and how do they support communication and e-business?
INTERNET SERVICES AND COMMUNICATION TOOLS + Telnet, FTP, WWW, IM, VoIP, Web Telnet: a network protocol that allows a user on one computer to log into another computer that is part of the same network + VPN: Virtual Private Network: secured, encrypted, private network. + Unified Communications: integrates disparate channels for voice comm., data comm., IM, , and e-conferencing into a single experience where users can seamlessly switch back and forth between different comm. modes.

21. How do the Internet and Internet technology work and how do they support communication and e-business?
WEB + Hypertext (HTTP): hypertext transfer protocol, comm. standard used to transfer pages on the web. + URL (Uniform Resource Locator) + Web Servers + Search Engines / Mobile Search + Search Engine Marketing (SEM) + Search Engine Optimization (SEO) + Predictive Search, Social Search (fewer, more relevant and trustworthy search results based on a person’s network of social contacts), Semantic Search (understand human language and behavior), Visual Search, Shopping Bots

22. SEO & SEM

23. How do the Internet and Internet technology work and how do they support communication and e-business?
WEB 2.0
+ Provides second-generation interactive Internet-based services that enable people to collaborate, share information, and create new services online. Web 2.0 software applications run on the Web itself instead of the desktop and bring the vision of Web-based computing closer to realization.
+ 4 features: interactivity; real-time user control; social participation; and user-generated content.
+ Blog, Microblogging (Twitter): < 140 characters
+ RSS: Really Simple Syndication or Rich Site Summary: pulls specific content from websites and feeds it automatically to users’ computers
+ Wikis
+ Social Networking: communication

24. How do the Internet and Internet technology work and how do they support communication and e-business?
WEB 3.0 AND THE FUTURE WEB
+ WEB 1.0: solved the problem of obtaining access to info.
+ WEB 2.0: solved the problem of sharing info. with others and building new web experiences.
+ WEB 3.0: is the promise of a future web where all this digital info., all these contacts, can be woven together into a single meaningful experience.
Sometimes it is referred to as Semantic Web, “meaning”, more intelligent, more “human-like”.
Other complementary trends leading toward a future web 3.0 include more widespread use of cloud computing and sw as a service (SaaS) business model, ubiquitous connectivity among mobile platforms and Internet access devices, and the transformation of the web from a network of separate applications and content into a more seamless and interoperable whole.

25. How do the Internet and Internet technology work and how do they support communication and e-business?

26. What are the principal technologies and standards for wireless networking communication, and Internet access?
+ Cellular Systems: 3G networks, 4G networks (higher speed) + Wireless: Bluetooth; Wifi; WiMax (Worldwide Interoperability for Microwave Access; range up to 31 miles and transmission speed up to 75 Mbps) + Hotspots are locations with one or more access points providing wireless Internet access and are often in public places + RFID: Radio Frequency Identification: radio, short distance + NFC: Near Field Communication

27. What are the principal technologies and standards for wireless networking communication, and Internet access?

28. What are the principal technologies and standards for wireless networking communication, and Internet access?
+ Near Field Communication NFC is a short-range wireless connectivity standard that uses electromagnetic radio fields to enable 2 compatible devices to exchange data when brought within a few cm of each other. A smartphone or other NFC-compatible device sends out radio frequency signals that interact with an NFC tag found in compatible card readers or smart posters. The signals create a current that flows through the NFC tag, allowing the device and the tag to communicate with one another. NFC is used in wireless payment services, to retrieve information, and even to exchange videos or information with friends on the go.

29. What are the principal technologies and standards for wireless networking communication, and Internet access?
+ Wireless Sensor Networks (WSN): are networks of interconnected wireless devices with some processing and radio-transmitting capability that are embedded into the physical environment to provide measurements of many points over large spaces. Are valuable for monitoring environmental changes, traffic patterns, security incidents, or supply chain events. Wireless sensor networks can be placed in the field for years without any maintenance or human intervention. That reduces costs to businesses using them.

30. What are the principal technologies and standards for wireless networking communication, and Internet access?
INTERNET OF THINGS
RFID systems and wireless sensor networks are major sources of “Big Data” that org. are starting to analyze to improve their operations and decision making.
Outputs from these systems is fueling what is called the Industrial Internet, or the Internet of Things, in which machines such as jet engines, power plant turbines, or agricultural sensors constantly gather data and send the data over the Internet for analysis.
Over time, more and more everyday physical objects will be connected to the Internet and will be able to identify themselves to another devices, creating networks that can sense and respond as data changes.

31. REVIEW SUMMARY
What are the principle components of telecommunications networks and key networking technologies?
What are the different types of networks?
How do the Internet and Internet technology work and how do they support communication and e-business?
What are the principal technologies and standards for wireless networking communication, and Internet access?

32. LET’S GO THROUGH THEM TOGETHER! END!
REVIEW QUESTIONS
LET’S GO THROUGH THEM TOGETHER! END!