week 1 Flashcards
what are the an extensive data communications network installed around the globe?
- wire
- optic fibre
- wireless
what does WWW stand for ?
world wide web
what is WWW?
) is a collection of documents (web pages) available to the public and residing on servers distributed around the world
Give 3 examples of web browsers
google chrome
firefox
internet explorer
what are the browsers called
client side application software
what is uniform resourc used for?(URL)
The URL is used to represent the address of the web server
Every device on a data network requires a unique address to identify it.Usually how binary numbers are the adress consist of
32 bit or 128 bit binary number
what is 32 bit or 128 bit binary number called
IP address
what is the URL converted to
valid IP address using the Domain Name System (DNS) protocol
where does the URL points to
home page of a particular website
How Client Communicates with a Web Server
Protocol , address and path name
why is domain used for
A domain name is merely used to make web site addresses easier to remember
what does http define
HTTP defines the rules by which the browser communicates with the web server
what does the browser send to make the web page work
The browser sends a GET request to the Web server to retrieve the address it has been given.
For example, when a user types http://www.abc.com/pic1.jpg, the browser sends a GET pic1.jpg command to abc.com and waits for a response.
what happens after browser receives GET responds
It verifies that the given address exists, finds the necessary files, runs the appropriate scripts, exchanges cookies if necessary, and returns the results back to the browser.
If it cannot locate the file, the server sends an error message to the client.
what does html stand for
hypertext markup language
what does coding contain
Colour, font, size, and positioning of text
The size and positioning of images
Code to identify when the mouse transits a section of the screen
Code to initiate action when the mouse transits a section of the screen
Code to respond to an action such as a mouse click
Etc.
need to know
The code for interpreting the web page and the data itself are intermixed
Special characters are used to distinguish between formatting code and data
where is HTML document is created
text editor
Microsoft Notepad or equivalent can be used as a text editor
Free third party HTML editors such Notepad++ can also be used
An HTML editor performs syntax checking to identify errors as well as other useful functions
why is word processor not suitable to create HTML
a word processor such as Microsoft Word is generally not suitable because it embeds hidden formatting characters
how to save the page after it is encoded
Once a web page is coded it is saved with a .html extension
how to save a website with multiple pages
If the website consists of more than one page, the first (home) page should be saved as index.html
what does declaration mean
It identifies the type of mark up language in use.The declaration informs the browser how to interpret the mark up code
what is the type of declaration we will using in this course
HTML5. This declaration will always be the first line in each document.
what is open and close tags
is the opening tag.
is the closing tag.
