Unit- 5 5.1 Multimedia and Internet 5.1.1 . Client

Transcript:Unit- 5 5.1 Multimedia and Internet 5.1.1 . Client:
Unit- 5 5.1 Multimedia and Internet 5.1.1 . Client –server Technology Two or more computers connected to each other make a network or client and server technology 5.1.2 . Communication protocols TCP / IP: is the protocol used for communication on the internet TCP Transmission Control Protocol IP Internet Protocol Http: Hyper text transfer protocol -- > to access websites https: secured http In 1983 Domain Name System (DNS) was established to assign names and addresses to computers which were linked to the internet. Ex: www. yahoo.com www. google.com https: www. exim. co .tz 5.1.3. Internet Addressing syntax: Protocol:// domain Name / path/file name Ex: http: // www.exim.co.tz/home.php The server directly path and file name are often left off. The protocol usually does not need to be typed. The protocol is also often hidden, such as Mail to news 5.1.3. Internet Addressing top level Domains .com .net .gov .mil .edu .org Two letter country codes. 5.1.4. Internet Function To connect to the Internet, a computer or networks needs A data connection to a server the data connection can be wireless or a land line you usually need account with the server most people access a server through an internet service provider (ISP) TCP/IP software Your operating systems may need to be configured to connect to the server and use TCP/IP software 5.1.5 origin of World Wide Web The World-Wide Web began in March 1989 at CERN. (CERN was originally named after its founding body the “Conseil Europeen pour la Recherche Nucleaire,” and is now called “European Laboratory for Particle Physics.” The hyper text transfer protocol (HTTP) was designed as a means for sharing documents over the internet The hypertext markup language (HTML) is the markup language of the web. Cross –platform compatibility was a design goal. 5.1.6 HTML and Web Authoring Web authoring is the practice of creating web documents using modern web authoring software and tools. Web authoring software is a type of desktop publishing tool that allows users to navigate the tricky environment of HTML and web coding by offering a different kind of graphical user interface. HTML stands for Hypertext Markup Language, and it is the most widely used language to write Web Pages. Hypertext refers to the way in which Web pages (HTML documents) are linked together. Thus, the link available on a webpage is called Hypertext. As its name suggests, HTML is a Markup Language