Transcript Instructional Media - E

Wired Learning
Instructional Media
EDCI 625 Instructional Media
AIIAS
Telecommunication
• “Describes a process in which two, or
more computers or devices transfer data,
instructions, and information.”
• Also called communication network
• Connected through digital and analog
signal with modem
EDCI 625 Instructional Media
AIIAS
Types of network
• Home Network
• Local Area Network (LAN)
• Wide Area Netwok (WAN)
• Different types of connection
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Cable
Wireless
Satellite
Others
EDCI 625 Instructional Media
AIIAS
Benefits of network
• Share computer hardware and software
• Communication
• Access to data resources in a central
place
• Tools for collaboration
• Connect/Communication
– Enable communications among schools and
other organization
– Connect students and teachers to the Internet
EDCI 625 Instructional Media
AIIAS
The Internet
• Worldwide collection of networks
(Sometimes called network of networks)
• No one owned the Internet
• More than a billion users
Internet Stat:
http://www.internetworldstats.com/
EDCI 625 Instructional Media
AIIAS
Internet usage
• Access to unlimited information
• Conduct business/banking transaction
• Access sources of entertainment (Games, magazines,
etc.)
• Shop for goods and services
• Explore virtual worlds
• Meet and converse with people around the world
• Access and exchange of files
• Send and receive message
• Download and listen to music
• Access to educational materials
EDCI 625 Instructional Media
AIIAS
History of the Internet
• From Sputnik to Internet
• Project of ARPA started in 1969
• Main Goals are:
– Share information
– Military defence
• Reach 1000 computers in 1984
• Today host more than 350 millions
computers
EDCI 625 Instructional Media
AIIAS
How the Internet works
• Data Packets
• TCP/IP – Transfer Control
Protocol/Internet Protocol
• Access Provider (ISP)
– Use digital line or analog (modem)
• Internet Addresses (Domain name)
EDCI 625 Instructional Media
AIIAS
Internet connection
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Dial-up access
Cable modem
DSL
Satellite
Power line communication
EDCI 625 Instructional Media
AIIAS
Other Internet services
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E-Mail
File transfer protocol
Newsgroup
Mailing list
Instant messaging
Chat rooms
Internet telephony
EDCI 625 Instructional Media
AIIAS
Security and netiquette
• Firewall – protect data from threats coming
in and coming out
• Filtering software – allows and blocks
• Netiquette – common rules and
procedures over Internet use
• School Policy – Acceptable Use Policy
EDCI 625 Instructional Media
AIIAS