Introduction to Computers Lesson 8B. home Ways to Connect to the Internet Direct connection Remote terminal connection Gateway connection LAN Modem High-speed.

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Presentation transcript:

Introduction to Computers Lesson 8B

home Ways to Connect to the Internet Direct connection Remote terminal connection Gateway connection LAN Modem High-speed data link ISDN DSL Cable

home Two PC Internet Connection Issues Software Network connection

home Winsock Lets multiple software applications work with multiple network connections

home Firewall A firewall blocks unauthorized entry into a network that is connected to the Internet

home Examples of Firewalls Proxy server Packet filter Application gateway Circuit gateway

home Two Corporate Web Spin-offs Intranet Extranet

home Intranet A LAN or WAN that uses TCP/IP protocols but belongs exclusively to a corporation, school or organization

home Extranet An intranet accessible to outside Internet users

home Internet Business Concerns Ownership Libel Appropriate use

home E-commerce Doing business online

home Two Payment Options for E- Commerce Consumers One-time credit card purchase Online account

home Methods for Providing Personal Information Security on Web Sites Secure sockets layer (SSL) and encryption Secure HTTP (S-HTTP)

Lesson 8B Getting Online, Working Online

home Review Questions What is Winsock? What is a firewall? What is the difference between an intranet and an extranet? What is SSL?

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