Computers: Understandint Technology, 3e - PowerPoint PPT Presentation

Loading...

PPT – Computers: Understandint Technology, 3e PowerPoint presentation | free to download - id: 8e9bf-ZDc1Z



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Computers: Understandint Technology, 3e

Description:

Communications ... The Computer Advantage Communications. A local area network (LAN) is a network confined to ... Communications. The Internet is used for ... – PowerPoint PPT presentation

Number of Views:34
Avg rating:3.0/5.0
Slides: 83
Provided by: danie2
Learn more at: http://www.emcp.com
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Computers: Understandint Technology, 3e


1
(No Transcript)
2
Chapter 1
Our Digital World
3
Presentation Overview
  • Immersed in Digital Technology
  • The Computer Advantage
  • How Computers Work
  • Computers and Computer Systems
  • Components of a Computer System
  • Categories of Computers

4
Immersed in Digital Technology
  • Digital

5
Immersed in Digital Technology
  • Digital
  • refers to an electronic signal that is processed,
    sent, and stored as bits

6
Immersed in Digital Technology
  • Digital
  • refers to an electronic signal that is processed,
    sent, and stored as bits
  • bits are represented by on and off states

7
Immersed in Digital Technology
  • How has digital technology infiltrated your daily
    life?

8
Immersed in Digital Technology
  • How has digital technology infiltrated your daily
    life?
  • Computer technology powers HDTVs, VCRs,
    microwave ovens, watches, cell phones, and
    automobiles.

9
Immersed in Digital Technology
  • How has digital technology infiltrated your daily
    life?
  • Computer technology powers HDTVs, VCRs,
    microwave ovens, watches, cell phones, and
    automobiles.
  • Embedded chips, computers, networks, and the
    Internet and WWW enable us to communicate
    globally.

10
Immersed in Digital Technology
  • Computerized devices
  • have embedded computers to perform a few
    specific actions

11
Immersed in Digital Technology
  • A computer is an electronic device that

12
Immersed in Digital Technology
  • A computer is an electronic device that
  • operates under a set of instructions

13
Immersed in Digital Technology
  • A computer is an electronic device that
  • operates under a set of instructions
  • accepts data that user supplies

14
Immersed in Digital Technology
  • A computer is an electronic device that
  • operates under a set of instructions
  • accepts data that user supplies
  • manipulates data according to a program

15
Immersed in Digital Technology
  • A computer is an electronic device that
  • operates under a set of instructions
  • accepts data that user supplies
  • manipulates data according to a program
  • produces results

16
Immersed in Digital Technology
  • A computer is an electronic device that
  • operates under a set of instructions
  • accepts data that user supplies
  • manipulates data according to a program
  • produces results
  • stores the results

17
The Computer AdvantageSpeed
18
The Computer AdvantageSpeed
  • Computers operate with lightning-like speed.

19
The Computer AdvantageSpeed
  • Computers operate with lightning-like speed.
  • PCs execute billions of program instructions in
    one second.

20
The Computer AdvantageSpeed
  • Computers operate with lightning-like speed.
  • PCs execute billions of program instructions in
    one second.
  • Supercomputers execute trillions of instructions
    per second, the kind of processing required to
    forecast the weather and monitor space shuttle
    flights.

21
The Computer AdvantageAccuracy
22
The Computer AdvantageAccuracy
  • Computers are accurate when accurate programs and
    data are entered.

23
The Computer AdvantageAccuracy
  • Computers are accurate when accurate programs and
    data are entered.
  • If inaccurate programs and/or data are entered
    (garbage in), the output will also be inaccurate
    (garbage out) GIGO.

24
The Computer AdvantageVersatility
25
The Computer AdvantageVersatility
  • Families use computers for entertainment,
    communications, budgeting, online shopping,
    homework, playing games, and listening to music.

26
The Computer AdvantageVersatility
  • Families use computers for entertainment,
    communications, budgeting, online shopping,
    homework, playing games, and listening to music.
  • Universities, government agencies, hospitals, and
    scientific organizations conduct life-enhancing
    research using computers.

27
The Computer AdvantageVersatility
  • Families use computers for entertainment,
    communications, budgeting, online shopping,
    homework, playing games, and listening to music.
  • Universities, government agencies, hospitals, and
    scientific organizations conduct life-enhancing
    research using computers.
  • Banks conduct money transfers, account
    withdrawals, and payment of checks via computer.

28
The Computer AdvantageVersatility
  • Retailers process sales transactions and check
    availability of products.

29
The Computer AdvantageVersatility
  • Retailers process sales transactions and check
    availability of products.
  • Manufacturers manage their entire production,
    warehousing, and selling processes.

30
The Computer AdvantageVersatility
  • Retailers process sales transactions and check
    availability of products.
  • Manufacturers manage their entire production,
    warehousing, and selling processes.
  • Schools keep records, conduct distance-learning
    classes, schedule events, and analyze budgets.

31
The Computer AdvantageStorage
32
The Computer AdvantageStorage
  • Computers accept and store programs and data.

33
The Computer AdvantageStorage
  • Computers accept and store programs and data.
  • Users can access a program again and again to
    process different data.

34
The Computer AdvantageStorage
  • Computers accept and store programs and data.
  • Users can access a program again and again to
    process different data.
  • Computers store huge amounts of data in tiny
    physical spaces.

35
The Computer AdvantageCommunications
36
The Computer AdvantageCommunications
  • Networks using special equipment and programs
    allow computers to communicate with each other
    through telephone lines, cable connections, and
    satellites.

37
The Computer AdvantageCommunications
  • Networks using special equipment and programs
    allow computers to communicate with each other
    through telephone lines, cable connections, and
    satellites.
  • Users can exchange information over wireless
    networks using personal digital assistants
    (PDAs), notebook computers, cell phones, and
    pagers.

38
The Computer Advantage Communications
  • A local area network (LAN) is a network confined
    to a small geographic area, such as a
    building, factory, or college campus.

39
The Computer AdvantageCommunications
  • A wide area network (WAN) spans a large
    geographical area and might connect a companys
    manufacturing plants dispersed throughout the
    United States.

40
The Computer AdvantageCommunications
  • The Internet is a worldwide network of large and
    small networks linked together via communications
    hardware, software, and media for the purpose of
    communicating and sharing information.

41
The Computer AdvantageCommunications
  • The Internet is used for various purposes,
    including

42
The Computer AdvantageCommunications
  • The Internet is used for various purposes,
    including
  • sending and receiving messages

43
The Computer AdvantageCommunications
  • The Internet is used for various purposes,
    including
  • sending and receiving messages
  • researching information

44
The Computer AdvantageCommunications
  • The Internet is used for various purposes,
    including
  • sending and receiving messages
  • researching information
  • buying and selling products and services

45
The Computer AdvantageCommunications
  • The Internet is used for various purposes,
    including
  • sending and receiving messages
  • researching information
  • buying and selling products and services
  • taking online college courses

46
The Computer AdvantageCommunications
  • The Internet is used for various purposes,
    including
  • sending and receiving messages
  • researching information
  • buying and selling products and services
  • taking online college courses
  • accessing entertainment

47
The Computer AdvantageCommunications
48
The Computer AdvantageCommunications
  • World Wide Web a system of linked computer
    networks that allows users to move from one site
    to another by way of links on Web pages

49
The Computer AdvantageCommunications
  • World Wide Web a system of linked computer
    networks that allows users to move from one site
    to another by way of links on Web pages
  • Web page an electronic document stored on a
    computer running on a Web site

50
The Computer AdvantageCommunications
  • World Wide Web a system of linked computer
    networks that allows users to move from one site
    to another by way of links on Web pages
  • Web page an electronic document stored on a
    computer running on a Web site
  • Search engine a software program that locates
    and retrieves requested information

51
The Computer Advantage
  • What advantages do computers offer?

52
The Computer Advantage
  • What advantages do computers offer?
  • Provide speed, versatility, storage, and
    communications

53
The Computer Advantage
  • What advantages do computers offer?
  • Provide speed, versatility, storage, and
    communications
  • Widely used in homes, workplace, and society

54
The Computer Advantage
  • What advantages do computers offer?
  • Provide speed, versatility, storage, and
    communications
  • Widely used in homes, workplace, and society
  • Used to communicate, manage finances, analyze
    data, plan, research, and for hundreds of other
    purposes

55
How Computers Work
  • Types of data

56
How Computers Work
  • Types of data
  • Text data letters, numbers, and special
    characters

57
How Computers Work
  • Types of data
  • Text data letters, numbers, and special
    characters
  • Graphic data photographs, charts, and drawings

58
How Computers Work
  • Types of data
  • Text data letters, numbers, and special
    characters
  • Graphic data photographs, charts, and drawings
  • Audio data voice and music

59
How Computers Work
  • Types of data
  • Text data letters, numbers, and special
    characters
  • Graphic data photographs, charts, and drawings
  • Audio data voice and music
  • Video data moving pictures and images

60
How Computers Work
  • Combining types of data can improve the
    presentation quality of a message.

61
How Computers Work
  • During the information processing cycle, data is
    entered into a computer, processed, sent as
    output, and stored (if required for future use).

62
Computers and Computer Systems
  • A personal computer system includes
  • System unit
  • Input devices
  • Output devices
  • Storage devices
  • Communications devices

63
Components of a Computer System
  • A personal computer system includes

64
Components of a Computer System
  • A personal computer system includes
  • System unit the electronic components process
    data into information

65
Components of a Computer System
  • A personal computer system includes
  • System unit the electronic components process
    data into information
  • Input devices allow users to enter
    instructions, data, and commands into a
    computer common input devices
  • keyboard , mouse, microphone

66
Components of a Computer System
  • A personal computer system includes
  • System unit electronic components process
    data into information
  • Input devices allow users to enter
    instructions, data, and commands into a
    computer common input devices
  • keyboard , mouse, microphone
  • Output devices make information available to
    the user common output devices
  • display screens, printers

67
Components of a Computer System
  • A personal computer system includes
  • Storage devices provide for permanent storage
    of programs, data, and information

68
Components of a Computer System
  • A personal computer system includes
  • Storage devices provide for permanent storage
    of programs, data, and information
  • Communications devices allow a user to
    exchange instructions, data, and information
    with other computer users

69
Components of a Computer System
  • What is the difference between a computer and a
    computer system?

70
Components of a Computer System
  • What is the difference between a computer and a
    computer system?
  • A computer is the part of the system that
    processes the data into information.

71
Components of a Computer System
  • What is the difference between a computer and a
    computer system?
  • A computer is the part of the system that
    processes the data into information.
  • A computer system includes the computer along
    with input, output, storage, and communication
    devices.

72
Categories of Computers Personal Computers
  • fits on a desk, in a briefcase, on a laptop, or
    is worn
  • executes 600 million to 3 billion instructions
    per second
  • used by a single user or as part of a network
  • costs a few hundred to thousands of dollars

73
Categories of Computers Handheld Computer
  • fits in hand(s) or carried in a pocket
  • executes a few hundred instructions per second
  • used by a single user or as part of a network
  • costs 99 to a few hundred dollars

74
Categories of Computers Workstation
  • similar in size to desktop PC but larger and
    more powerful
  • executes 3 to 5 billion instructions per second
  • used by a single user or as part of a network
  • costs a few thousand dollars

75
Categories of ComputersMidrange Server
  • fits into a large cabinet
  • executes billions of instructions per second
  • used by hundreds of users at the same time
  • costs 5,000 to hundreds of thousands of dollars

76
Categories of ComputersLarge Server or Mainframe
  • occupies a partial or full room
  • executes billions of instructions per second
  • used by hundreds or thousands of users at the
    same time
  • costs several thousands to millions of dollars

77
Categories of ComputersSupercomputer
  • occupies a full room
  • executes trillions of instructions per second
  • used by thousands of users at the same time
  • costs several million dollars

78
Categories of Computers
  • What are the basic categories of computers and
    their distinguishing characteristics?

79
Categories of Computers
  • What are the basic categories of computers and
    their distinguishing characteristics?
  • Personal computer self-contained, capable of
    input, processing, output, and storage

80
Categories of Computers
  • What are the basic categories of computers and
    their distinguishing characteristics?
  • Personal computer self-contained, capable of
    input, processing, output, and storage
  • Handheld computer fits comfortably in a
    users hand

81
Categories of Computers
  • What are the basic categories of computers and
    their distinguishing characteristics?
  • Personal computer self-contained, capable of
    input, processing, output, and storage
  • Handheld computer fits comfortably in a
    users hand
  • Workstation high-performance single-user
    computer

82
On the Horizon
  • Based on the information presented in this
    chapter and your own experience, what do you
    think is on the horizon?
About PowerShow.com