Read and make brief notes in the links below about the internet if neccessary
http://www.open2.net/ictportal/comm/internet/introduction.htm
http://computer.howstuffworks.com/internet-infrastructure.htm
2. Prepare brief notes on the tasks assigned to you. Be ready to present your findings in the next lesson
Agape and Kunal
a) Describe the types of connections that one can connect to the internet
b) Visit www.brunet.bn/ name the internet connection available and compare their speeds.
Ashiraf and Yvvone
a) Wimax is a new Internet connection technology being developed, research what it is and describe your findings
b) How does data travel the Internet? Understanding Internet Protocols TCP/IP and packet switching and how data travels over the internet. Use this http://www.learnthenet.com/
Teshin and Ali
a) In your own words describe how the Internet using TCP/IP and packet switching for data to travel over the Internet. Using a diagram would also be useful.
b) Point of Interest IP addresses are running out at present there are over 3 billion IP addresses available but we are running out. So the new IPv6 is being developed. Explain why the IP addresses are running out and how the IPv6 will be a solution
Nilusha and Sirak
a)Internet Service Provider (ISP) and Online Service Providers (OSP). Describe what each of these is?
b) What are the differences between the Internet and the WWW?
Becki and Cythai
a) URL (Uniform Resource Locator) is the naming system and addresses for each web address. Explain by giving examples.
b) Define the term ‘Cookies’
Trevor and
a)Identify two pieces of information that would be stored by cookies.
b) Discuss the use of cookies and their impact on web surfing.
c) Define bandwidth
Ashan and Thelma
a) What is Internet 2 – What is the future of the Internet 2?
b) How will internet 2 solve our present challenges?
Avani and Rishma
a) What is web 2?
b) Describe the future of Web 2
nternet2 is a not-for-profit advanced networking consortium comprising more than 200 U.S. universities in cooperation with 70 leading corporations.
ReplyDeleteTHE FUTUER OF INTERNET 2
a panel will be set up to discuss the movement towards 100gbs Ethernet and the implications it has on RONs and university systems.
HOW WILL INTERNET 2 SOLVE OUR PRESENT CHALLENGES?
High-performance connections nearly 45,000 other research and education organizations
Access to unique online resources,
Enhanced opportunities for collaboration, and
Cost-effective alternatives for providing education, clinical care and consultation.
by Thelma and ahsan...
b) The Internet is based on packet-switched protocols. Information is carried in packets, which can be imagined as small parcels being passed from computer to computer. Large chunks of data are usually broken up into several smaller packets before being sent through the network. The delivery mechanism, or protocol, that is used to encode the packet ensures safe transit, and provides a way of reconstructing the data when it reaches its destination. The protocols used on the Internet are referred to as TCP/IP. [Transmission control protocol/internet protocol]
ReplyDelete(TCP is a communications protocol that provides a reliable means of verifying whether a data transfer has taken place without data loss. It builds on the basic transfer properties of the Internet Protocol (IP), providing the core language of the Internet.)
The protocols ensure that guaranteed information delivery is more important than speed or use of a particular route. This means that a sequence of packets might arrive out of order, with some travelling through the net by a faster and shorter route than others. TCP/IP provides the means for your software to put those packets together into meaningful data. The ability to take different routes through the network is an essential part of the original design of TCP/IP, as it allows the Internet to route around damaged areas of the network.
Data routes across the Internet can be switched to avoid congestion.
An Internet Service Provider (ISP) also known as an Internet Access Provider (IAP) is a company that offers its customers access to the Internet. The ISP connects to its customers using a data transmission technology appropriate for delivering Internet Protocol datagrams, such as dial-up, DSL, cable modem or dedicated high-speed interconnects.
ReplyDelete~~ tehsin and nilusha ~~
WiMAX
ReplyDeleteWiMAX (Worldwide Interoperability for Microwave Access) is a telecommunications protocol that provides fixed and fully mobile Internet access. WiMAX revision provides up to 40 M/bits.
The relatively low cost to deploy a WiMAX network (in comparison to GSM, DSL or Fiber-Optic), it is now possible to provide broadband in places where it might have been previously economically unviable.
The bandwidth and range of WiMAX make it suitable for the following potential applications:
• Providing portable mobile broadband connectivity across cities and countries through a variety of devices.
• Providing a wireless alternative to cable and DSL for "last mile" broadband access.
• Providing data, telecommunications (VoIP) and IPTV services (triple play).
• Providing a source of Internet connectivity as part of a business continuity plan.
WiMAX access has been used to assist with communications in Aceh, Indonesia, after the tsunami in December 2004. All communication infrastructure in the area, other than amateur radio, was destroyed, making the survivors unable to communicate with people outside the disaster area and vice versa. WiMAX provided broadband access that helped regenerate communication to and from Aceh.
WiMAX hardware has also been donated by Intel Corporation to assist the Federal Communications Commission (FCC) and FEMA in their communications efforts in the areas affected by Hurricane Katrina.In practice, volunteers used mainly self-healing mesh, Voice over Internet Protocol (VoIP), and a satellite uplink combined with Wi-Fi on the local link.
An online service provider can for example be an internet service provider, email provider, news provider (press), entertainment provider (music, movies), search, e-shopping site (online stores), e-finance or e-banking site, e-health site, e-government site, Wikipedia, Usenet (commonly accessed through Google Groups).[clarification needed] In its original more limited definition it referred only to a commercial computer communication service in which paid members could dial via a computer modem the service's private computer network and access various services and information resources such a bulletin boards, downloadable files and programs, news articles, chat rooms, and electronic mail services.
ReplyDelete~~ TEHSIN AND NILUSHA ~~~~~~
a) Internet Service Provider (ISP) and Online Service Providers (OSP). Describe what each of these is?
ReplyDelete• Internet service provider (ISP), is a company that offers its customers access to the Internet. The ISP connects to its customers using a data transmission technology appropriate for delivering Internet Protocol packets or frames, such as dial-up, DSL, cable modem, wireless or dedicated high-speed interconnects.
• Online Service Providers (OSP), is a company that provides customer-only content to subscribers of its service. Most traditional OSPs now offer Internet access (like an ISP), but their main feature is a privately maintained network that is only accessible to their subs.
b) What are the differences between the Internet and the WWW?
• The Internet is a massive network of networks. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet. Information that travels over the Internet does so via a variety of languages known as protocols.
While
• The World Wide Web, or simply Web, is a way of accessing information over the medium of the Internet. It is an information-sharing model that is built on top of the Internet. The Web uses the HTTP protocol, only one of the languages spoken over the Internet, to transmit data.
Internet 2
ReplyDelete1. Internet2 is an advanced not-for-profit US networking consortium led by members from the research and education communities, industry, and government.
The internet2 is a next generation internet protocol and optical network that delivers production network services to meet the high-performance demands of research and education, and provides a secure network testing and research environment.
The Internet2 offers lightning-fast connections to two fiber-optic backbone networks that ensure data arrives at its destination without loss or delay.
It currently provides nationwide high-performance networking capabilities for over 180 Internet2 universities, which, in addition to high speed, provides advanced networking services such as multi-casting, IPv6, enables advanced applications such as High-Definition TV, tele-medicine and remote access to scientific instruments. TV may soon stream into your home via your computer in a quality and level never before envisioned. And the average person may well be able to create their own TV shows right on their own home computer.
Internet2 is developing and deploying advanced network applications and technologies for research and also for higher education, accelerating the creation of tomorrow's Internet.
2.How will internet2 solve our present problems?
Internet2 provides lightning fast connections and ensures data arrives without loss or delay.
It provides high speed network and good for research and business purposes
khilna
1. Identify two pieces of information that would stored by the cookies
ReplyDelete-Site preferences
-Passwords
2. Discuss the use of cookies and there impact on web surfing
-They offer internet privacy in such a way that they can store passwords and encrypted data which allows a user to safely protect his/her data from unwanted users.
-They can also be used to manage session i.e maintain data related to the user during navigation
-They can be used to track internet users web browsing habits
3. Define bandwidth
-Is the measure of amount of data that can be transmitted through a circuit per unit time
TYPES OF INTERNET CONNECTIONS by agape and kunal
ReplyDeletea) Describe the types of connections that one can use to connect to the internet
There are 10 different ways that can be used to connect to the internet.They are the following:
Dial-up Internet access which uses the facilities of the public switched telephone network (PSTN) to establish a dialed connection to an Internet service provider (ISP) via telephone lines.It is an economical internet connection but at the same time very slow.
Cable Internet access Cable Internet works by using TV channel space for data transmission. Some of thechannels are used for downstream transmission, and other channels for upstream transmission. Because the coaxial cable used by cable TV provides much greater bandwidth than telephone lines, a cable modem can be used to achieve extremely fast access.
b) Define the term ‘Cookies’
ReplyDeleteCOOKIES
A cookie, also known as a web cookie, browser cookie, and HTTP cookie, is a piece of text stored on a user's computer by their web browser. A cookie can be used for authentication, storing site preferences, shopping cart contents, the identifier for a server-based session, or anything else that can be accomplished through storing text data.
As text, cookies are not executable. Because they are not executed, they cannot replicate themselves and are not viruses. However, due to the browser mechanism to set and read cookies, they can be used as spyware. Anti-spyware products may warn users about some cookies because cookies can be used to track computer activity—a privacy concern, later causing possible malware.
Most modern browsers allow users to decide whether to accept cookies, and the time frame to keep them, but rejecting cookies makes some websites unusable.
Beki and Cynthia
Avani,Rishma,Winnie
ReplyDeleteWhat is web 2.0???
It's a new collection of applications and technologies that make it easier for people to find information and connect with one another online that provide Web users with a deep and rich experience.
It’s future
It’s future may depend on its pros and cons
Advantages
Information can be pulled from a number of different places, and it can be personalized to meet the needs of a single user.
It could be said that Web 2.0 will allow the mass population to communicate with each other and spread ideas rather than receiving their information from a single authority.
Information will flow freely, and people can express their ideas without fear of repression.
Instead of getting information from once source , they can receive their information from multiple sources, and this will allow them to make better decisions about the world around them. A good example of this is the ability to read newspapers from various countries other than the one you reside in.
Disadvantages
It is not secure, and they could easily be targeted by hackers
Spending too much time on the internet.
The websites become vulnerable to vandalism. Since, anyone can edit the content of a Web 2.0 site, it is possible for a person to purposely damage or destroy the content of a website.
It offers anonymity to the person who edits the content.
Sharing is also an issue that will become controversial. When users begin sharing information that is copyrighted people won’t be paid for the work they do.
In conclusion web 2.0 can go on for further generations since it is very easy to use and has many amazing features but the security may be an obstacle for it’s rise and give opportunity to other products like web 3.0 that may have more advanced features and a tightened security.