Introduction to Computers

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Presentation transcript:

Introduction to Computers Getting Online

Ways to Connect to the Internet Direct connection Wireless (Wi-Fi) Remote terminal connection Gateway connection LAN Modem High-speed data link ISDN DSL Cable

Two PC Internet Connection Issues Software Network connection

Winsock Lets multiple software applications work with multiple network connections

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

Examples of Firewalls Proxy server Packet filter Application gateway Circuit gateway

Two Corporate Web Spin-offs Intranet Extranet

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

Extranet An intranet accessible to outside Internet users

Internet Business Concerns Ownership Libel Appropriate use

E-commerce Doing business online

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

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

Getting Online, Working Online Lesson 8B Getting Online, Working Online