Internet and Web Basics

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Internet and Web Basics

• INST 5240
• Mimi Recker
• Utah State University

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Internet and Web Basics

• Layered Model

Applications Email Web FTP...
Protocols SMTP HTTP FTP TELNET NNTP...
Transport TCP/IP
Delivery Fiber Satellite Telephone ...
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History

• 1950s - ARPA formed
• 1960 - ARPANET commissioned by DoD for research
  into networking. 4-node network established
• 1972 - email established. 2000 users
• 1984 - DNS introduced
• 1991 - WWW released by CERN
• 1993 - Mosaic released
• 1995 - WWW becomes most popular Internet
  application
• 1999 - Internet voted technology of the year

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4-node Network (1969)
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World-Wide Web

• Internet application
• Client-server model. Popular clients (browsers)
  Navigator and Explorer
• Distributed
• Multimedia
• Dynamic and interactive
• Cross-platform
• Hypertext
• Web documents marked-up using HTML (hypertext
  markup language)

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Questions?

• Everything you ever wanted to know about the
  Internet/Webbut were afraid to ask.

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Internet-based Instruction

• Supports
• Anytime/anywhere/anyone flexible learning
• Access to unlimited resources
• Access to new forms of communications and
  collaborations, new perspectives
• Inquiry-based learning
• Student publishing of projects
• Others?

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Online Communications
Location
Same
Different
Same
Time
Different
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Difficulties

• Isolation and motivation of distanced learner
• Reading text on screen
• Information overload
• Disinformation
• Information access and literacy
• Others?