TAILIEUCHUNG - Discovering Computers - Chapter 9: Communications and Networks

Discovering Computers - Chapter 9: Communications and Networks includes Communications, Uses of Computer Communications, Networks, Network Communications Standards, Communications Software, Communications Over the Telephone Network. | Chapter 9 Communications and Networks Chapter 9 Objectives Discuss the components required for successful communications Identify various sending and receiving devices Explain the purpose of communications software Describe various types of lines for communications over the telephone network Describe uses of computer communications Describe commonly used communications devices List advantages of using a network Discuss different ways to set up a home network Differentiate among client/server, peer-to-peer, and P2P networks Identify various physical and wireless transmission media Describe the various network communications standards Next Communications What are computer communications? Process in which two or more computers or devices transfer data, instructions, and information p. 460 Fig. 9-1 Next Communications What is needed for successful communications? Sending device — initiates instruction to transmit data, instructions, or information Communications device — connects the sending device to the communications channel Communications device — connects the communications channel to the receiving device p. 460 - 461 Communications channel — media on which data, instructions, or information travel Receiving device — accepts transmission of data, instructions, or information Next Uses of Computer Communications What are some uses of communications technology? Internet Chat Rooms FTP p. 462 Web Instant Messaging E-Mail Newsgroups Web Folders Internet Telephony Video Conferencing Fax Machine or .

• Tin học văn phòng
• Discovering Computers
• Uses of Computer Communications
• Network Communications Standards
• Communications Software
• Communications Over the Telephone Network
• Communications Devices
• Introduction to Computers
• A World of Computers
• The Components of a Computer
• Advantages of Using Computers
• Disadvantages of Using Computers
• Discovering computers fundamentals
• Computers fundamentals
• World Wide Web
• System software
• Application software
• Functions of computers
• Internet connections
• Internet access
• Web browser
• User interface
• Multimedia programs
• Key features
• The Component of the system unit
• System units
• Control unit
• Computer keyboards
• Input devices
• Output devices
• Reading devices
• Storage device
• Internal hard disk
• Flash Memory Storage
• Cloud Storage
• Operating systems
• Utility programs
• Operating system functions
• Computer communications
• Database management
• The hierarchy of data
• Maintaining data
• File processing versus databases
• Computer security risks
• Computer security
• Network attacks
• Unauthorized access
• Information system development
• Programming languages
• System development
• Program development tools
• Enterprise Computing
• Information systems in the enterprise
• Enterprise wide technologies
• Cloud computing
• The Components of the System Unit
• Data Representation
• Expansion Slots
• Adapter Cards
• Mobile Computers
• History of the Internet
• How the Internet Works
• Web Publishing
• Internet Services
• Business Software
• Multimedia Software
• Application Software for Communications
• Alone Utility Programs
• The Keyboard
• Pointing Devices
• Voice Input
• Smart Phones
• Digital Cameras
• Video Input
• Display Devices
• Flat Panel Displays
• CRT Monitors
• Putting It All Together
• Magnetic Disks
• Optical Discs
• Miniature Mobile Storage Media
• Summary of Storage
• Operating System Utility Programs
• Types of Operating Systems
• DatabaseDefine the term
• System Development Cycle
• Implementation Phase
• Support Phase
• Information System Security
• Program Development
• Low Level Languages
• Procedural Languages
• Object Oriented Programming Languages
• Backup Procedures
• Summary of Enterprise Computing