计算机科学概论第8版
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– Input refers to whatever is sent to a computer system
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 4
6
Computer Basics
What is a computer?
– Describe operating systems – Evaluate the various ways you can connect a
computer to the Internet and select an ISP
Chapter 1: Computer, Internet, Web, and E-Mail Basics
• Data refers to the symbols that represent facts, objects, and ideas
• Processing is the way that a computer manipulates data
• A computer processes data in a device called the central processing unit (CPU)
After this chapter, you should be able to:
– Define the term computer and identify the components of a personal computer system
– Compare the computing capabilities of the computer categories
– Describe Internet communications and basic features
– Demonstrate that you can use a search engine to locate information on the Web
– Explain how an e-mail system works
• Storage is the area where data can be left on a permanent basis
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 5
8
Computer Basics
What is a computer?
Chapter 1: Computer, Internet, Web, and E-Mail Basics
3
Chapter 1 Outline
• Section A
– Computer Basics
• Section B
– Internet Basics
• Section C
– Web Basics
• microcomputers • minicomputers • mainframe computers
• Section D
– E-Mail Basics
Chapter 1:Computer, Internet, Web, and E-Mail Basics
4
Chapter 1
Computer, Internet, Web, and E-Mail Basics Section A: Computer Basics
Page 5
9
What is a computer?
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 5
10
Computer Categories
• Before:
– Categorized into three main categories:
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 4
7
What is a computer?
• A computer stores data so that it will be available for processing
• Memory is an area of a computer that holds data that is waiting to be processed, stored, or output
ChapCthear p41t:eFCrio1lem: MCpouamtneapr,guIetnemtre,erInnett,etV,rnireuts, Web, and E-Mail Basics
1
PWreobte,catniodn,Ea-MndaiBl Bacaksuicps
Chapter 1 Preview
Computer Concepts 8th Edition Parsons/Oja
What is a computer?
• A computer system includes a computer, peripheral devices, and software
• Accepts input, processes data, stores data, and produces output
• Computer output is the result produced by the computer
• An output device displays, prints or transmits the results of processing
Chapter 1: Computer, Internet, Web, and E-Mail Basics
2
Chapter 1 Preview
After this chapter, you should be able to:
– Describe how Web servers, browsers, URLs, HTML, and HTTP contribute to the Internet resource known as the Web
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 4
6
Computer Basics
What is a computer?
– Describe operating systems – Evaluate the various ways you can connect a
computer to the Internet and select an ISP
Chapter 1: Computer, Internet, Web, and E-Mail Basics
• Data refers to the symbols that represent facts, objects, and ideas
• Processing is the way that a computer manipulates data
• A computer processes data in a device called the central processing unit (CPU)
After this chapter, you should be able to:
– Define the term computer and identify the components of a personal computer system
– Compare the computing capabilities of the computer categories
– Describe Internet communications and basic features
– Demonstrate that you can use a search engine to locate information on the Web
– Explain how an e-mail system works
• Storage is the area where data can be left on a permanent basis
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 5
8
Computer Basics
What is a computer?
Chapter 1: Computer, Internet, Web, and E-Mail Basics
3
Chapter 1 Outline
• Section A
– Computer Basics
• Section B
– Internet Basics
• Section C
– Web Basics
• microcomputers • minicomputers • mainframe computers
• Section D
– E-Mail Basics
Chapter 1:Computer, Internet, Web, and E-Mail Basics
4
Chapter 1
Computer, Internet, Web, and E-Mail Basics Section A: Computer Basics
Page 5
9
What is a computer?
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 5
10
Computer Categories
• Before:
– Categorized into three main categories:
Chapter 1: Computer, Internet, Web, and E-Mail Basics
Page 4
7
What is a computer?
• A computer stores data so that it will be available for processing
• Memory is an area of a computer that holds data that is waiting to be processed, stored, or output
ChapCthear p41t:eFCrio1lem: MCpouamtneapr,guIetnemtre,erInnett,etV,rnireuts, Web, and E-Mail Basics
1
PWreobte,catniodn,Ea-MndaiBl Bacaksuicps
Chapter 1 Preview
Computer Concepts 8th Edition Parsons/Oja
What is a computer?
• A computer system includes a computer, peripheral devices, and software
• Accepts input, processes data, stores data, and produces output
• Computer output is the result produced by the computer
• An output device displays, prints or transmits the results of processing
Chapter 1: Computer, Internet, Web, and E-Mail Basics
2
Chapter 1 Preview
After this chapter, you should be able to:
– Describe how Web servers, browsers, URLs, HTML, and HTTP contribute to the Internet resource known as the Web