TAILIEUCHUNG - Lecture Introduction to Computers: Chapter 9A - Peter Norton's

Chapter 9A - Network basics. This chapter include objectives: Identify at least three benefits of using a network, differentiate between LANs and WANs, identify at (east three common network topologies, name two common network media, identify network hardware and linking devices. | McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 9A Network Basics Network Definition Set of technologies that connects computers Allows communication and collaboration between users 9A- The Uses of a Network Simultaneous access to data Data files are shared Access can be limited Shared files stored on a server Software can be shared Site licenses Network versions Application servers 9A- Teaching Tip Figure on page 342 visually describes the sharing process. It can be helpful to have students open a shared file that you control. Make a change then have the students open it again. Alternatively, share a document and allow your students to write in it. Then demonstrate how the shared document changes. Spend time discussing why application servers need to be so powerful. The Uses of a Network Shared peripheral device Printers and faxes are common shares Reduces the cost per user Devices can be connected to the network Print servers control network printing Manage the print queue 9A- Teaching tip Figure on page 344 shows a print queue. It can be helpful to demonstrate your classroom queue. Sharing Data File server contains documents used by other computers. 9A- The Uses of a Network Personal communication Email Instantaneous communication Conferencing Tele conferencing Videoconferencing Audio-conferencing Data-conferencing Voice over IP Phone communication over network wires 9A- Teaching tip It is fun if you can setup a teleconference in your classroom. Students get to learn how to join or create the conference. Additionally, they learn how to participate. Finally, students have fun, especially with shared whiteboards. Voice Over IP 9A- The Uses of a Network Easier data backup Backup copies data to removable media Server data backed up in one step 9A- Insider information The text describes needing special software to back up data from user drives. However, the backup

• Hệ điều hành
• Introduction to Computers
• Computer systems
• Computer science
• Hybrid networks
• Sharing data
• Local Area Network
• Discovering Computers
• A World of Computers
• The Components of a Computer
• Advantages of Using Computers
• Disadvantages of Using Computers
• Computers in society
• Computer defined
• Computers for organizations
• Introduction to java programming
• Introduction to Programs
• Introduction to Java
• TicTacToe Applet
• SelfTest Website
• Transforming data
• Number systems
• Computers represent data
• Java How to Program
• Assembly languages
• Hight level languages
• Introduction to object technology
• Typecal java development environtment
• Bài giảng Nhập môn tin học
• Nhập môn tin học
• Data processing
• Characteristic features of computers
• Computers evolution to their present form
• Computers generations
• Introduction to Computing
• Fundamental Concepts
• Computer History
• Analogue Computers
• First Digital Computers
• Today’s Computers
• Information processing cycle
• Computer hardware
• Software runs the machine
• Internet’s history
• World Wide Web
• Search techniques
• E mail addresses
• File Transfer Protocol
• Internet Relay Chat
• The keyboard
• Input device
• Mechanical mouse
• Inputting data
• Devices for the hand
• Optical input devices
• Audiovisual input devices
• Output device
• Video card
• Cathode Ray Tube
• Electronic magnetic fields
• Impact printers
• High quality printers
• Ink jet printers
• Modern CPUs
• Microcomputer processors
• Advanced micro devices
• Storage devices
• Categorizing storage devices
• Magnetic storage devices
• Improving drive perform ance
• Average access time
• Data transfer rate
• Operating system
• User interface
• Managing hardware
• Network operating systems
• PC operating systems
• Embedded operating systems
• Productivity software
• Acquiring software
• Word processing programs
• Graphics file formats
• Multimedia basics
• Graphics software
• Standard telephone lines
• Digital data connections
• Wireless networks
• Online world
• Internet through wires
• Internet wirelessly
• Consumer level
• Business level