Internet and Web Basics INST 5240 Mimi Recker

Internet and Web Basics INST 5240 Mimi Recker Utah State University

Internet and Web Basics Layered Model Applications Protocols Email SMTP Transport Delivery Web HTTP FTP. . . TELNET NNTP. . . TCP/IP Fiber Satellite Telephone. . .

History o o o o 1950 s - ARPA formed 1960 - ARPANET commissioned by Do. D 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’

4 -node Network (1969)

World-Wide Web o o o o 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)

Questions? o Everything you ever wanted to know about the Internet/Web…but were afraid to ask.

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

Online Communications Location Same Time Different

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