Computer Concepts 8th Edition

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Computer Concepts8th Edition

• Chapter 1

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Chapter Preview

• Define the term computer and identify the
  components of a personal computer system
• Compare the computing capabilities of the
  computer categories
• Describe operating systems
• Describe Internet communications and basic
  features
• Explain how an e-mail system works

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Definition of a Computer

• Prior to 1940
• Evolving technology
• Computers in the future may weigh no more than
  1.5 tons.
• -Popular Mechanics, 1949

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What is a Computer

• Accepts input
• Processes data
• Stores Data
• Produces Output

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What is a computer?
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Computer Categories- One View

• Mainframe
• Minicomputer
• Microcomputer

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Computer Categories

• Personal
• Desktop
• Notebook (Laptop)
• Tablet computer
• Handheld
• PDA
• Palm Handhelds Palm.com

Click on Picture to Start Video
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Computer Categories

• Workstations
• Powerful for specialized tasks
• Computer on a network
• Play stations(video game consoles)
• Mainframes
• Supercomputers

Mainframe computer
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Computer Categories

• Network
• LAN
• WAN
• Servers different types
• Clients

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Personal Computer Systems

• System Unit
• Monitor
• CRT
• LCD
• Keyboard
• Mouse
• Floppy disk drive

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Personal Computer Systems

• Hard Disk Drive
• CD Technology
• CD ROM
• CD-R
• CD-RW
• DVD Technology

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Personal Computer Systems

• Modem or NIC
• Printer
• Other peripheral devices why?
• Sound Card

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Data, Information Files

• What is the difference?
• Data
• Information
• Data stored digital format
• 0s 1s
• Bit binary digit
• Byte 8 bits

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Data, Information Files

• File
• Executable
• Data
• Filenames
• Length
• Extensions
• Wildcards -

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Data, Information Files
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Data, Information Files
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Data, Information Files
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Data, Information Files
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Data, Information Files
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Application System Software

• System
• Operating system
• Utilities
• Device drivers
• Application

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Internet Basics
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Internet Basics

• Backbone
• TCP/IP
• IP address
• Packets
• Router

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Internet Basics

• Web Sites
• Home pages
• Links
• Search engines
• E-Commerce
• E-mail

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Internet Basics

• Bulletin Boards
• Downloads/uploads
• Chat groups/Instant Messaging
• Internet Telephony
• Broadcasting - Beethoven.com

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Internet Basics

• Remote access and control - pcAnywhere
• Peer-to-peer
• P2P
• Networks

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Internet Connections

• Dial-up voice band modem

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Internet Connections

• Cable
• Network card
• Cable modem
• ISDN Integrated Services Digital Network
• DSL Digital Subscriber Line
• DSS Digital satellite Service

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Internet Service Provider - ISP

• What is an ISP?
• How do I find one
• How do I choose your needs, cost, service

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User ID Passwords
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Web Basics

• WWW the Web
• Web pages
• Links - cnn.com
• Web site
• Web Servers

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Web Basics

• HTML
• What is it
• What is an HTML tag
• Browser - Link to VSCC Home Page
• URL
• What is it? address, location
• How do I use it
• Menus Buttons

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Web Basics Using Search Engines

• Selecting a search engine
• Query
• Keyword (s)
• Operators
• Quote marks
• Field search
• Topic directory Yahoo

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Web Basics Using Search Engines

• Using Google
• Ask Jeeves - Ask.com

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E-mail
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E-mail

• What is e-mail
• E-mail account
• E-mail message
• Header
• What can I do
• Attachments - size
• May have more than one per message
• MIME multi-purpose Internet mail extensions

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E-mail

• Advanced features
• Netiquette

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E-mail Technology

• E-mail system
• E-mail servers
• Store forward
• POP Post office technology
• IMAP Internet Messaging Access Protocol
• Web-based email
• Hotmail
• Lycos

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E-mail Technology

• POP server
• SMTP server
• Simple Mail Transfer Protocol
• Outgoing mail server
• E-mail client software
• POP vs. Web-based

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The Boot Process

• Cold vs. Warm
• 6 steps
• Power
• Start boot program ROM
• Power-on self test POST
• ID peripheral devices
• Load OS
• Check configuration and customization

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The Boot Process

• POST check main circuitry, keyboard, monitor,
  memory
• Beep codes
• Safe Mode
• What if it fails?

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Chapter Review Questions

• Labs - 4 assigned
• Operating a Personal Computer
• Making a Dial-up Connection
• Browsing and Searching
• Using E-mail
• Quick Checks
• Interactive summary
• Interactive Situation Questions

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End of Chapter 1