文档介绍：Contents
Chapter 1 Introduction to Information Technology
Chapter 2 System Unit
Chapter 3 Input Devices
Chapter 4 Output Devices
Chapter 5 Secondary Storage
Chapter 6 System Software
Chapter 7 Application Software
Chapter munication System
Chapter work
Chapter 10
Chapter 11 merce and Security
Chapter 12 Professional Certification and Careers in Information Systems
Chapter 10
Objective
After reading this chapter, you should be able to:
Master , Web, TCP/IP, E-mail, FTP, and terms.
Know how to access the .
Know how to send E-mail.
Explain IP address, DNS, Search Engines.
Describe Some of Web utilities.

The is a work of puters, enabling users to share information along multiple channels.
The movement of information in the is achieved via a system of works that share data by packet switching using the standardized Protocol Suite (TCP/IP).

A majority of widely accessible information on the consists of inter-linked hypertext documents and other resources of the World Wide Web (WWW).
Computer users typically manage sent and received information with web browsers; other software for users' interface works includes specialized programs for electronic mail, online chat, file transfer and file sharing.

E-mail
Electronic mail (often abbreviated as e-mail or email.) is any method of creating, transmitting, or storing primarily text-based munications with munications systems.
e-mail messages consist of two major sections:
Header. Structured into fields such as summary, sender, receiver, and other information about the e-mail.
Body. The message itself as unstructured text; sometimes containing a signature block at the end.
E-mail