Java Games: Flashcards, matching, concentration, and word search.

Living Online Textbook, Unit 1: Getting Connected, Lesson 2: Looking at the Internet

In this activity you will be introduced to a brief history of the internet and different options for connecting to the internet.

AB
The Internet isan international wide area computer network, similar in design to the worldwide telephone network.
The internet is basically made up ofsmaller networks connected together to allow people from anywhere in hte world to communicate with each other, using a set of standards.
To communicate sucessfully on the telephone network you must:1) you need to now the number of the other person, and 2) you must speak the same language.
On the telephone network if you do not speak the same language, you willstill be able to connect bust you will not communicate successfully.
The telephone network is multifunctional and is used fortransmitting voice, facsimile (fax), and data information over the same network.
Each country has an organization responsible for the telephone network and they ensure thatthe network conforms to the international telephony protocols or standards.
The same principles for telephones apply to theinternational computer network, or the Internet.
Any computer connected to the Internet can "talk" to any other computer connected to the Internet provided:1) you know the number of the other computer, and 2) the computers speak the same language (protocol).
The set of protocols used by the Internet is calledTCP/IP (transfer control protocol/Internet protocol).
Computers connected to the internet typically fall into to groups:1) servers that provide services and 2) clients or users who use those services.
Servers actually connect toNetwork Access Points (NAP) that make up the internet
Network Access Points (NAP) make up the backbone of the Internet, andprovide the services where we can "get" items.
ISP stands forInternet Service Providers
ISPs sell you aconnection to the internet that you pay for on a monthly basis.
ISPs maintainconnection lines and hardware and software used at ISP sites.
ISPs providecustomer support and technical support.
ISPs provide protection againstpotential viruses or unauthorized access requests
ModemTransmits data by converting analog to digital signal needed by computers. Measured in bits per second.
Network CardMust be installed to connect to Internet.
Internet AccountThe account signed up with ISP.
Web BrowserSoftware program that allows you to search for items on the Internet.
Telecommunications SoftwareConfigures computer to connect to Internet.
CablesConnects from the jack on the wall to the jack at the network card.
Things to consider when choosing an ISP arehardware and software needed, cost and the reputation, customer services, location and connection speed of the provider.
Types of Internet connections aretelephone access (dial-up), tv cable access, online services and digital connections
IntranetPrivate LAN in company using same network protocols as Internet
ExtranetUses internet technology to allow a company to share information with another company or organization.
Dial-up access is considered low bandwidth, which meansthe speed will not be as fast as you might want.
Dial-up access can be very cost-effective if you areunsure how much time you may need or want to be on the internet.
TV cable access allows youto be connected to the internet all the time.
One reason online services are very popular is thesense of community that is quickly established once you signed up.
Types of digital connections:ISDN (Integrated Services Digital Network), DSL (Digital Subscriber Line) and ADSL (Asynchronous Digital Subscriber Line).


Business and Information Technology, Marketing Education Teacher
Hermitage High School
VA

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