❤ Marielle. Yr 10 IST.

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❤ DISCLAIMER

❤ Marielle. Yr 10 IST.
simply me & what I do in IST...

no taxing aiights. :)

cos i have machine guns! xD

Key Terms-The Internet and Web Design

~Key Terms-The Internet and Web Design~

Define the term; Protocol

Protocol-The rules determining the format and transmission of data.

What are the following protocols used for?
TCP/IP, HTTP, SMTP, FTP

TCP/IP- The Transmission Control Protocol/Internet Protocol are used for determining the location of IP packets, whether they've been lost in transmission or not and the format of the data that's being sent over the Internet.

HTTP- The HyperText Transfer Protocol is used between web browsers and servers to transfer web pages and any associated files. It is known as the language of the Internet and is built over the TCP/IP.

SMTP- The Simple Mail Transfer Protocol, is a network protocol used for sending email messages between servers.

FTP- The File Transfer Protocol, is a network protocol that's manages the sending and receiving of files over the Internet.

What does GUI stand for? What was used before GUI?

GUI or Graphical User Interface uses the mouse to be able to navigate, click on icons and to make changes and give commands. Before GUI was in use, Command Line Interface or CLI was used. CLI was used to enter computer commands through text entry as the mouse hadn't been invented for GUI to have been used. CLI can still be used today through the "Run..." option in start up.

There are two methods of data transmission – serial and parallel. Explain the difference between them.

Serial transmission is the sending of data one bit at a time sequentially over a communication channel and is used for all long haul communications over most computer networks. Parallel transmission is the sending of data several bits together at a time over several parallel channels but unlike serial transmission can't be used to cover long distances but the speed of both serial and parallel are the same.

Define the term “URL”. Explain the components that make up the URL.

URL or Uniform Resource Locator and is commonly known as the web address of a web page. The URL is made up of several parts, starting with the protocol, which determines which server will be fetching the URL and deals with various other protocols. The second part is the domain name, which identifies the website over the Internet and the third part is the path which determines where the particular web page is located on the web server or which folder it can be under.

In the context of data transmission, what is “error detection”?

Error detection is a method that is used to detect errors in the transfer of data. The data is encoded and when decoded should match the original file, which allows for some errors to be detected when they don't match.

Name and explain one common method of error detection.

One method of error detection is, Block Check. This is a black based error detection and adds a block to each bit of data with a certain calculation and the receiver performs the same action. When the data is received, the same calculation is performed and the data should be matched to the original, if not, then an error has occurred.

What is HTML and explain why it is important.

HTML or HyperText Markup Language, is a coded language that is used between servers to describe the text based structure of a site as well as to an extent the appearance and design of the site and without it, websites wouldn't be able to be read.

Tuesday, May 5, 2009 - 9:53 PM