计算机介绍英文版
合集下载
相关主题
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Next
6
The Components of a Computer
What is an output device?
Hardware that conveys information to a user
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Output Devices below Chapter 1 p. 8 Fig. 1-3
p. 9 Fig. 1-6
Next
15
The Components of a Computer
What is a compact disc?
Flat, round, portable metal disc
CD-ROM CD-RW DVD-ROM DVD+RW
p. 9 Fig. 1-7
USB 2.0
32/64/128/256/512/1024
USB 2.0
64/128
USB 1.1
* 1.1 = 12Mbps, 2.0 = 480Mbps
Next
14
The Components of a Computer
What is a hard disk?
Provides much greater storage capacity than a floppy disk or USB flash drive Housed inside the system unit
What are two main components on the motherboard?
Central Processing Unit (CPU)
Also called a processor Carries out instructions that tell computer what to do
p. 10 Fig. 1-8
Next
20
Networks and the Internet
What is the Internet?
Worldwide collection of networks that connects millions of computers
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Internet below Chapter 1 p. 11 Fig. 1-9
Teacher: bai yan E-mail:baiyan1@blcu.edu.cn
Chapter 1: Introduction to Computers
1
Chapter 1 Objectives
Recognize the importance of computer literacy Identify the types of software Define the term computer and identify its components Describe the categories of computers Explain why a computer is a powerful tool Recognize the purpose of a network Discuss the uses of the Internet and the World Wide Web Distinguish between installing and running a program Identify the types of computer users
A Web site is a collection of related Web pages
A Web page contains text, graphics, sound, video, and links to other Web pages
You can share information by creating Web pages or posting photos on a photo community
Determine how the elements of an information system interact
Discuss various computer applications in society
Next
2
A World of Computers
What is computer literacy?
p. 8 Fig. 1-4
Next
12
The Components of a Computer
What is a flash drive?
Provides much greater storage capacity than a floppy disk or Zip® disk Small and lightweight enough to be transported on a keychain or in a pocket
Next
4
What Is a Computer?
What is the information processing cycle?
Fra Baidu bibliotek
Input Process Output Storage Communication
p. 6 Fig. 1-2
Next
5
The Components of a Computer
Enables a connection between computers One type is a modem
p. 10
Next
18
Networks and the Internet
What are the reasons to network?
To share
Resources Hardware devices Software programs
Processes data into information
Data that is organized, meaningful, and useful
Accepts data
Raw facts, figures, and symbols
Produces and stores results
p. 6
What is a floppy disk?
Thin, circular, flexible disk enclosed in rigid plastic shell A USB flash drive is portable, and has much greater storage capacity
Next
21
Networks and the Internet
Why do users access the Internet?
1. Communications 2. Information 3. Shopping
4. Banking and Investing
5. Classes 6. Entertainment
What is an input device?
Hardware used to enter data and instructions
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Input Devices below Chapter 1 p. 7 Fig. 1-3
Next
7
The Components of a Computer
What is the system unit?
Box-like case containing electronic components used to process data
p. 8 Fig. 1-3
Next
8
The Components of a Computer
Next
16
Why Is a Computer So Powerful?
What makes a computer powerful?
Storage
Reliability and Consistency
Speed
Accuracy
Communications
p. 10
Next
17
Networks and the Internet
Memory
Temporary holding place for data and instructions
p. 8
Next
9
The Components of a Computer
What is storage?
Holds data, instructions, and information for future use
Knowledge and understanding of computers and their uses Computers are everywhere
p. 5 Fig. 1-1
Next
3
What Is a Computer?
How is a computer defined?
Electronic device operating under the control of instructions stored in its own memory
p. 9 Fig. 1-5
Next
13
The Components of a Computer
What is a flash drive?
Product Thumbdrive Touch (www.thumbdrive.com) Data Traveler 2.0 Hi-Speed (http://www.kingston.com) Handy Steno HT202 (www.apacer.com) Audio Steno BP300 (www.apacer.com) Capacity (MB) 8/16/32/64/128/256/512/ 1024 128/256/512/1024 Interface* USB 1.1
Storage media
Physical material on which data, instructions, and information are stored
Storage device
Records and retrieves items to and from a storage medium
To save Data time Information and money
p. 10
Next
19
Networks and the Internet
What is a server?
Manages the resources on a network A client accesses the resources on the server
What is a network?
Collection of computers and devices connected together
Communications Device
Communications Media
Cables Telephone lines Cellular radio Satellites
p. 8
Next
10
The Components of a Computer
What is storage media?
Digital cameras
Portable, thin memory cards used in:
Handheld computers
p. 8
Next
11
The Components of a Computer
p. 12 Fig. 1-10
Next
22
Networks and the Internet
What is the Web?
Billions of documents, called Web pages, available to anyone connected to the Internet
6
The Components of a Computer
What is an output device?
Hardware that conveys information to a user
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Output Devices below Chapter 1 p. 8 Fig. 1-3
p. 9 Fig. 1-6
Next
15
The Components of a Computer
What is a compact disc?
Flat, round, portable metal disc
CD-ROM CD-RW DVD-ROM DVD+RW
p. 9 Fig. 1-7
USB 2.0
32/64/128/256/512/1024
USB 2.0
64/128
USB 1.1
* 1.1 = 12Mbps, 2.0 = 480Mbps
Next
14
The Components of a Computer
What is a hard disk?
Provides much greater storage capacity than a floppy disk or USB flash drive Housed inside the system unit
What are two main components on the motherboard?
Central Processing Unit (CPU)
Also called a processor Carries out instructions that tell computer what to do
p. 10 Fig. 1-8
Next
20
Networks and the Internet
What is the Internet?
Worldwide collection of networks that connects millions of computers
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Internet below Chapter 1 p. 11 Fig. 1-9
Teacher: bai yan E-mail:baiyan1@blcu.edu.cn
Chapter 1: Introduction to Computers
1
Chapter 1 Objectives
Recognize the importance of computer literacy Identify the types of software Define the term computer and identify its components Describe the categories of computers Explain why a computer is a powerful tool Recognize the purpose of a network Discuss the uses of the Internet and the World Wide Web Distinguish between installing and running a program Identify the types of computer users
A Web site is a collection of related Web pages
A Web page contains text, graphics, sound, video, and links to other Web pages
You can share information by creating Web pages or posting photos on a photo community
Determine how the elements of an information system interact
Discuss various computer applications in society
Next
2
A World of Computers
What is computer literacy?
p. 8 Fig. 1-4
Next
12
The Components of a Computer
What is a flash drive?
Provides much greater storage capacity than a floppy disk or Zip® disk Small and lightweight enough to be transported on a keychain or in a pocket
Next
4
What Is a Computer?
What is the information processing cycle?
Fra Baidu bibliotek
Input Process Output Storage Communication
p. 6 Fig. 1-2
Next
5
The Components of a Computer
Enables a connection between computers One type is a modem
p. 10
Next
18
Networks and the Internet
What are the reasons to network?
To share
Resources Hardware devices Software programs
Processes data into information
Data that is organized, meaningful, and useful
Accepts data
Raw facts, figures, and symbols
Produces and stores results
p. 6
What is a floppy disk?
Thin, circular, flexible disk enclosed in rigid plastic shell A USB flash drive is portable, and has much greater storage capacity
Next
21
Networks and the Internet
Why do users access the Internet?
1. Communications 2. Information 3. Shopping
4. Banking and Investing
5. Classes 6. Entertainment
What is an input device?
Hardware used to enter data and instructions
Click to view Web Link, click Chapter 1, Click Web Link from left navigation, then click Input Devices below Chapter 1 p. 7 Fig. 1-3
Next
7
The Components of a Computer
What is the system unit?
Box-like case containing electronic components used to process data
p. 8 Fig. 1-3
Next
8
The Components of a Computer
Next
16
Why Is a Computer So Powerful?
What makes a computer powerful?
Storage
Reliability and Consistency
Speed
Accuracy
Communications
p. 10
Next
17
Networks and the Internet
Memory
Temporary holding place for data and instructions
p. 8
Next
9
The Components of a Computer
What is storage?
Holds data, instructions, and information for future use
Knowledge and understanding of computers and their uses Computers are everywhere
p. 5 Fig. 1-1
Next
3
What Is a Computer?
How is a computer defined?
Electronic device operating under the control of instructions stored in its own memory
p. 9 Fig. 1-5
Next
13
The Components of a Computer
What is a flash drive?
Product Thumbdrive Touch (www.thumbdrive.com) Data Traveler 2.0 Hi-Speed (http://www.kingston.com) Handy Steno HT202 (www.apacer.com) Audio Steno BP300 (www.apacer.com) Capacity (MB) 8/16/32/64/128/256/512/ 1024 128/256/512/1024 Interface* USB 1.1
Storage media
Physical material on which data, instructions, and information are stored
Storage device
Records and retrieves items to and from a storage medium
To save Data time Information and money
p. 10
Next
19
Networks and the Internet
What is a server?
Manages the resources on a network A client accesses the resources on the server
What is a network?
Collection of computers and devices connected together
Communications Device
Communications Media
Cables Telephone lines Cellular radio Satellites
p. 8
Next
10
The Components of a Computer
What is storage media?
Digital cameras
Portable, thin memory cards used in:
Handheld computers
p. 8
Next
11
The Components of a Computer
p. 12 Fig. 1-10
Next
22
Networks and the Internet
What is the Web?
Billions of documents, called Web pages, available to anyone connected to the Internet