Τεχνολογία της Πληροφορίας στην Επικοινωνία και τα ΜΜΕ Επικοινωνία και τα ΜΜΕ, Εισαγωγή στο Διαδίκτυο Διάλεξη 9 η

Quit 7.2 Let’s Go Surfing

Quit 7.3 Τι είναι το Διαδίκτυο ; (Internet) Το Διαδίκτυο είναι μία συλλογή από δίκτυα που διασυνδέονται.

Quit 7.4 Ιστορία του Internet  ARPANET  Internet Κανένας δεν κυβερνά το Internet! Internet

Quit 7.5 Εμφάνιση Πληροφορίας στο Internet  Client/server programs  Browsers Internet Explorer Internet Explorer Netscape Netscape  The Internet address (URL) Identifies location of server site Identifies location of server site Files are downloaded for viewing Files are downloaded for viewing

Quit 7.6 Internet Διεύθυνση – Uniform Resource Locator DomainName Directory Filename AccessMethodOrProtocol

Quit 7.7 Ερμηνεία Commercial Education Businesses Government International Military Network Resources Nonprofit Organizations ID.com.edu.firm.gov.int.mil.net.org URL: Top-Level Domains (TLDs)

Quit 7.8HTML   HyperText Markup Language   Scripting language   Interpreted by browsers   XHTML   ASCII text documents   Tags Title text

Quit 7.9 Βασικές Έννοιες του Browser  Web Site Home page Home page Page Page Graphics, text, audio, video, animation Graphics, text, audio, video, animation  Hyperlinks Hypertext, hot images, hot icons Hypertext, hot images, hot icons  Μηχανές Αναζήτησης- Search Engines

Quit 7.10 Στοιχεία του Browser Menu Bar WorkspaceWorkspace URL Bar ToolbarToolbar Status Bar

Quit 7.11 Ανεύρεση Πληροφορίας  Browsing the Net Start with a portal (Yahoo) Start with a portal (Yahoo) Divided into major categories Divided into major categories  Searching hints: Read search rules Read search rules Try another search engine Try another search engine Results seldom exhaustive Results seldom exhaustive Choose search words carefully Choose search words carefully BE PERSISTENT! BE PERSISTENT!  Ask someone – FAQs, newsgroups Going Online

Quit 7.12 Εργαλεία Αναζήτησης  Yahoo  Google  Ask.com  Bing  DuckDuckGo DuckDuckGo  HotBot HotBot

Quit 7.13 Υ π ηρεσίες στο Internet  User-friendly  Multimedia  Hyperlinks  Interactive  Frames Web Servers  File Transfer Protocol  Download/upload files  Anonymous FTP TelnetTelnet FTPFTP

Quit 7.14 Μετάδοση Ηχου και Βίντεο  Radio broadcasting  Real-time audio streaming  Pull vs. push technology

Quit 7.15 Ψηφιακό Jukebox  Software Microsoft Microsoft Real Networks Real Networks  Download to MP3 players  Can also play videos  Software Microsoft Microsoft Real Networks Real Networks  Download to MP3 players  Can also play videos

Quit 7.16 Ε π ικοινωνώντας με τους ανθρώ π ους   USENET Newsgroups Bulletin boards Bulletin boards Threads Threads  Mailing lists or listservs  Internet relay chat (IRC)  Audio mail  Internet Telephone User Location Service User Location Service Conferencing Conferencing Whiteboarding Whiteboarding Application Sharing Application Sharing  Videophone/video conferencing  Instant messaging  Social Media

Quit 7.17  or e- mail server  The message  response options  Post Office Protocol Telecommuting To CC: and/or BCC:) SubjectMessage Attached file(s) Reply Reply to all Forward