lecture 01 - patuakhali science and technology...
TRANSCRIPT
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Lecture 01
• Course Number: CSE 211• Course Title: Introduction to Computers• Credits: 3• Classroom: BBA 101• Classification: Elective for freshmen • Prerequisite: None • Instructor: Dr. Md. Samsuzzaman, Associate Prof. Dept. of CCE• Office: Computer Science Engineering Building, Room 402• Objective: Introduction to computer science through extensive course
projects.• Email: [email protected]
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1A-2
Reference Book
• Textbook: G. B. Shelly and M. E. Vermaat, Discovering Computers 2012, Thomson Course Technology, Boston, MA, 2012.
• Reference: P. Norton, Peter Norton's Introduction to Computers, 6th Ed., McGraw-Hill, New York, 2006.
• Reference: M. M. Mano, Computer Engineering: Hardware Design, Prentice Hall, Englewood Cliffs, NJ, 1988.
• Reference: J. G. Brookshear, Computer Science: An Overview, 7th Ed., Addison Wesley, Reading, MA, 2003.
• excellent World Wide Web address: to look up computer terminology online http://www.wikipedia.org
• excellent World Wide Web address: to search companies, products, and events http://www.google.com, http://www.yahoo.com, http://www.msn.com
• Projects: will be assigned every week or every other week (30%) • Examinations: one midterm (30%) and one final (40%)
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1A-3
Chapter
• Chapter 1: Basic Introduction to Computers
• Chapter 2: Fundamentals of the World Wide Web and Internet
• Chapter 3: Software for Systems
• Chapter 4: System Unit Components
• Chapter 5: Understanding Input
• Chapter 6: Understanding Output
• Chapter 7: Types of Storage
• Chapter 8: Types of Utility Programs and Operating Systems
• Chapter 9: Networks and Communications
• Chapter 10: Managing a Database
• Chapter 11: Manage Computing Securely, Safely, and Ethically
• Chapter 12: Exploring Information System Development
• Chapter 13: Computer Programs and Programming Languages
• Chapter 14: Enterprise Computing
• Chapter 15: Careers in Computer and Certification
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Your Interactive Guide
to the Digital World
Discovering
Computers 2012
Chapter 1
Basic Introduction to Computers
![Page 5: Lecture 01 - Patuakhali Science and Technology …cse.pstu.ac.bd/uploads/teacher_uploads/Chapter_01Lect01.pdf• Reference: P. Norton, Peter Norton's Introduction to Computers, 6th](https://reader033.vdocuments.mx/reader033/viewer/2022052711/5accaa1e7f8b9a27628cba7e/html5/thumbnails/5.jpg)
Objectives Overview
Explain why computer literacy is vital to
success in today’s world
Define the term, computer, and describe
the relationship between data and
information
Describe the five components of a
computer
Discuss the advantages and disadvantages that users experience when
working with computers
Define the term, network, and identify
benefits of sharing resources on a network
Discuss the uses of the Internet and World
Wide Web
Discovering Computers 2012: Chapter 1 5See Page 3
for Detailed Objectives
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Objectives Overview
Distinguish between system software and application
software
Differentiate among types, sizes, and functions of
computers in each category
Describe the role of each element in an information
system
Explain how home users, small office/home office
users, mobile users, power users, and enterprise users
each interact with computers
Discuss how society uses computers in education,
finance, government, health care, science, publishing, travel, and manufacturing
Discovering Computers 2012: Chapter 1 6See Page 3
for Detailed Objectives
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A World of Computers
• Computers are everywhere
Discovering Computers 2012: Chapter 1 7Pages 4 - 5
Figure 1-1
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What Is a Computer?
• A computer is an electronic device, operating under the control of instructions stored in its own memory
Discovering Computers 2012: Chapter 1 8Page 6
Collects data
(input)Processing
Produces information
(output)
Information Processing Cycle
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What Is a Computer?
Discovering Computers 2012: Chapter 1 9Page 6
Figure 1-2
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The Components of a Computer
• A computer contains many electric, electronic, and mechanical components known as hardware
Discovering Computers 2012: Chapter 1 10Pages 6 - 8
• Allows you to enter data and instructions into a computerInput Device
• Hardware component that conveys information to one or more peopleOutput Device
• Case that contains the electronic components of the computer that are used to process dataSystem Unit
• Records (writes) and/or retrieves (reads) items to and from storage mediaStorage Device
• Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices
Communications Device
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Discovering Computers 2012: Chapter 1 11Page 7
Figure 1-3
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Advantages and Disadvantages of Using Computers
Advantages of Using Computers
Disadvantages of Using Computers
Discovering Computers 2012: Chapter 1 12
Speed
Reliability
Consistency
Storage
Communications
Health Risks
Violation of Privacy
Public Safety
Impact on Labor Force
Impact on Environment
Pages 9 - 10
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Advantages and Disadvantages of Using Computers
• Green computing involves reducing the electricity consumed and environmental waste generated when using a computer
• Strategies include:– Recycling
– Regulating manufacturing processes
– Extending the life of computers
– Immediately donating or properly disposing of replaced computers
Discovering Computers 2012: Chapter 1 13Page 10
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Networks and the Internet
• A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media
Discovering Computers 2012: Chapter 1 14Pages 10 - 11
Figure 1-6
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Networks and the Internet
• The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
Discovering Computers 2012: Chapter 1 15Page 11
Figure 1-7
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Networks and the Internet
• People use the Internet for a variety of reasons:
Discovering Computers 2012: Chapter 1 16Pages 12 - 13
Figure 1-8
Communicate Research and Access Information
Shop Bank and Invest Online Trading
Entertainment Download Videos Share Information Web Application
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Networks and the Internet
• A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users
Discovering Computers 2012: Chapter 1 17Page 14
Figure 1-9
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Computer Software
• Software, also called a program, tells the computer what tasks to perform and how to perform them
Discovering Computers 2012: Chapter 1 18Pages 15 - 16
Figures 1-10 - 1-11
System Software
• Operating system
• Utility program
Application Software
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Computer Software
• Installing is the process of setting up software to work with the computer, printer, and other hardware
Discovering Computers 2012: Chapter 1 19Pages 16 - 17
Figure 1-12
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Computer Software
• A programmer develops software or writes the instructions that direct the computer to process data into information
Discovering Computers 2012: Chapter 1 20Page 18
Figure 1-13
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Categories of Computers
Embedded computers
Supercomputers
Mainframes
Servers
Game consoles
Mobile computers and mobile devices
Personal computers
Discovering Computers 2012: Chapter 1 21Page 19
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Personal Computers
• A personal computer can perform all of its input, processing, output, and storage activities by itself
• Two popular architectures are the PC and the Apple
– Desktop computer
Discovering Computers 2012: Chapter 1 22Pages 19 - 20
Figures 1-15 - 1-16
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Mobile Computers and Mobile Devices
Personal computer you can carry from place to place
Examples include notebook computers, laptop computers, netbooks, ultra-thins, and Tablet PCs
Mobile Computer
Computing device small enough to hold in your hand
Examples include smart phones and PDAs, e-book readers, handheld computers, portable media players, and digital cameras
Mobile Device
Discovering Computers 2012: Chapter 1 23Pages 20 - 23
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Mobile Computers and Mobile Devices
Notebook computer
Tablet PC
Smart phones and PDAs
E-book reader
Discovering Computers 2012: Chapter 1 24Pages 20 - 22
Figures 1-17 – 1-20
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Mobile Computers and Mobile Devices
Handheld computer
Portable media player
Digital camera
Discovering Computers 2012: Chapter 1 25Pages 22 - 23
Figures 1-21 – 1-23
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Game Consoles
• A game console is a mobile computing device designed for single-player or multiplayer video games
Discovering Computers 2012: Chapter 1 26Page 24
Figure 1-24
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Servers
• A server controls access to the hardware, software, and other resources on a network
– Provides a centralized storage area for programs, data, and information
Discovering Computers 2012: Chapter 1 27Page 25
Figure 1-25
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Mainframes
• A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously
Discovering Computers 2012: Chapter 1 28Page 25
Figure 1-26
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Supercomputers
• A supercomputer is the fastest, most powerful computer
– Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second
Discovering Computers 2012: Chapter 1 29Page 25
Figure 1-27
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Embedded Computers
• An embedded computer is a special-purpose computer that functions as a component in a larger product
Discovering Computers 2012: Chapter 1 30Page 26
Consumer Electronics
• Mobile and digital telephones
• Digital televisions
• Cameras
• Video recorders
• DVD players and recorders
• Answering machines
Home Automation Devices
• Thermostats
• Sprinkling systems
• Security monitoring systems
• Appliances
• Lights
Automobiles
• Antilock brakes
• Engine control modules
• Airbag controller
• Cruise control
Process Controllers and Robotics
• Remote monitoring systems
• Power monitors
• Machine controllers
• Medical devices
Computer Devices and Office Machines
• Keyboards
• Printers
• Faxes
• Copiers
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Discovering Computers 2012: Chapter 1 31Page 26
Figure 1-28
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Elements of an Information System
Hardware Software Data
People Procedures
Discovering Computers 2012: Chapter 1 32Page 27
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Discovering Computers 2012: Chapter 1 33Page 27
Figure 1-29
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Examples of Computer Usage
Home User
• Personal financial management
• Web access
• Communications
• Entertainment
Small Office/Home Office User
• Look up information
• Send and receive e-mail messages
• Make telephone calls
Mobile User
• Connect to other computers on a network or the Internet
• Transfer information
• Play video games
• Listen to music
• Watch movies
Discovering Computers 2012: Chapter 1 34Pages 28 – 31
Figures 1-30 – 1-32
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Examples of Computer Usage
Power User
• Work with multimedia
• Use industry-specific software
Enterprise User
• Communicate among employees
• Process high volumes of transactions
• Blog
Discovering Computers 2012: Chapter 1 35Pages 31 – 32
Figures 1-33 – 1-34
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Computer Applications in Society
Education
Finance
Government
Health Care
Discovering Computers 2012: Chapter 1 36Pages 34 - 36
Figures 1-36 – 1-39
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Computer Applications in Society
Science
Publishing
Travel
ManufacturingDiscovering Computers 2012: Chapter 1 37Pages 36 - 38
Figures 1-40 – 1-43
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Video: Computer History in a Barn
Discovering Computers 2012: Chapter 1 38
CLICK TO START
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Summary
Basic computer concepts
Components of a computer
Networks, the Internet, and computer software
Many different categories of
computers, computer users, and computer
applications in society
Discovering Computers 2012: Chapter 1 39Page 39
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Your Interactive Guide
to the Digital World
Discovering
Computers 2012
Chapter 1
Basic Introduction to Computers
Chapter 1 Complete
![Page 41: Lecture 01 - Patuakhali Science and Technology …cse.pstu.ac.bd/uploads/teacher_uploads/Chapter_01Lect01.pdf• Reference: P. Norton, Peter Norton's Introduction to Computers, 6th](https://reader033.vdocuments.mx/reader033/viewer/2022052711/5accaa1e7f8b9a27628cba7e/html5/thumbnails/41.jpg)
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Assignment due January 10
• Open your personal computer at home and list the hardware specification as detailed as possible, including the manufacturer, product type, and serial number. List every software installed on your personal computer. For example:
• PC: ACER_M3630• CPU: IntelR2Q 6600• Motherboard: S45GMAX• SDRAM: 1GB DDR2-667 MAX 4GB • Intel GMA3100 DVMT 4.0• hard disk: S-ATA 320GB/7200RPM • monitor: Lemel 17 inch TFT-LCD, Model: LC-AE• power supply: 250W, ATX compatible
![Page 42: Lecture 01 - Patuakhali Science and Technology …cse.pstu.ac.bd/uploads/teacher_uploads/Chapter_01Lect01.pdf• Reference: P. Norton, Peter Norton's Introduction to Computers, 6th](https://reader033.vdocuments.mx/reader033/viewer/2022052711/5accaa1e7f8b9a27628cba7e/html5/thumbnails/42.jpg)
1A-42
• keyboard: 104 keys Chinese-English• DVD-RW drive: 16X SuperMulti• sound blaster card: • speakers: Trois DS 621G• mouse: Logitech Optical Mouse• anti-virus software: Norton AntiVirus• anti-virus software: Trend Micro/Internet Phone • OS: Windows 7• productivity software: Microsoft Office• …