World Wide Web
The World Wide Web is a part of the internet; it acts as a gateway for us to visit the many different web pages available on the internet. The web pages we see on the internet are stored by web servers, which would keep hold of the web pages which make up a website. Whenever you would go to a domain or an IP address, the user would be accessing a web server which will then go and deliver the requested webpage to the user. These web pages are written in html (hypertext mark-up language) which the browser reads and translates the html-page to be displayed for the user to understand.
Domain name servers
Domain name servers (DNS) are servers which maintain domain names for websites; it holds a large number of domain names in a database. DNS allows the user to search for domain names to locate an address on the internet (IP Address). Domain name servers make the web function easier as it acts as guide to finding other computers on the internet, it would find out what the IP address is by domain names in DNS's database.
Web servers
Web servers are used throughout the internet, they help to bring up the content of a website. Web servers contain multiply web pages to website which would be downloaded and displayed to the user. Web servers have IP Addresses for users to access to retrieve data from; web servers usually are used for hosting websites but it can also be used for data storage, gaming servers or for enterprise software. Web servers are good components of the World Wide Web that allow the internet to function as well as it does, the servers provide information such as web pages
and storage data that are needed content for websites.
Browsers
Browser is software installed on a computer; it allows the user to access the World Wide Web to visit web pages and web applications. Browsers are used for access web servers to download the website and its web pages; the browser would interpret the html code of the webpage and formats it orderly so that the user is able to read the webpage. Browsers also interpret other media such as images, videos, files, documents etc. Without browsers the internet and the World Wide Web would not function as well as it does, browsers are what make the web function, displaying the web pages for users to understand and providing the software to access the web. There are many different internet browsers which are used on the internet such as:
HTTP
HTTP (Hypertext Transfer Protocol) is a protocol used when transferring data across the World Wide Web. The protocol allows web browsers and web servers to communicate, the web browser would use HTTP to send a request to a web server and in return it would receive a webpage. For example, if a user is looking for a website as soon as the user types in a URL into the web browser, it would send a request from the HTTP to retrieve and download the webpage. HTTP helps with web functionality by providing the communication link between web browsers and web servers; it allows data to be exchanged between the two.
HTTPS
HTTPS (Hypertext Transfer Protocol Secure is a communications protocol which is used to keep information secure when online. Unlike HTTP, HTTPS adds security, securing the information that gets sent between the user and the webpage. HTTPS is like HTTP but has SSL protocol which encrypts information keeping it confidential. For example, when logging onto a banking website the URL would display the HTTPS showing that the protocol will secure the information that gets entered on the current webpage. It helps make the web function more securely when carrying out sensitive information to prevent it being exposed or stolen.
Domain name servers
Domain name servers (DNS) are servers which maintain domain names for websites; it holds a large number of domain names in a database. DNS allows the user to search for domain names to locate an address on the internet (IP Address). Domain name servers make the web function easier as it acts as guide to finding other computers on the internet, it would find out what the IP address is by domain names in DNS's database.
Web servers
Web servers are used throughout the internet, they help to bring up the content of a website. Web servers contain multiply web pages to website which would be downloaded and displayed to the user. Web servers have IP Addresses for users to access to retrieve data from; web servers usually are used for hosting websites but it can also be used for data storage, gaming servers or for enterprise software. Web servers are good components of the World Wide Web that allow the internet to function as well as it does, the servers provide information such as web pages
and storage data that are needed content for websites.
Browsers
Browser is software installed on a computer; it allows the user to access the World Wide Web to visit web pages and web applications. Browsers are used for access web servers to download the website and its web pages; the browser would interpret the html code of the webpage and formats it orderly so that the user is able to read the webpage. Browsers also interpret other media such as images, videos, files, documents etc. Without browsers the internet and the World Wide Web would not function as well as it does, browsers are what make the web function, displaying the web pages for users to understand and providing the software to access the web. There are many different internet browsers which are used on the internet such as:
- Internet explorer
- Google Chrome
- Firefox
- Safari
HTTP
HTTP (Hypertext Transfer Protocol) is a protocol used when transferring data across the World Wide Web. The protocol allows web browsers and web servers to communicate, the web browser would use HTTP to send a request to a web server and in return it would receive a webpage. For example, if a user is looking for a website as soon as the user types in a URL into the web browser, it would send a request from the HTTP to retrieve and download the webpage. HTTP helps with web functionality by providing the communication link between web browsers and web servers; it allows data to be exchanged between the two.
HTTPS
HTTPS (Hypertext Transfer Protocol Secure is a communications protocol which is used to keep information secure when online. Unlike HTTP, HTTPS adds security, securing the information that gets sent between the user and the webpage. HTTPS is like HTTP but has SSL protocol which encrypts information keeping it confidential. For example, when logging onto a banking website the URL would display the HTTPS showing that the protocol will secure the information that gets entered on the current webpage. It helps make the web function more securely when carrying out sensitive information to prevent it being exposed or stolen.
Image source:http://commons.wikimedia.org/wiki/File:Globe1.svg
Web 2.0
Web 2.0 is the "Second generation" of the Web. It offers improvements from the original Web 1.0. Web 2.0 marks the transition to introducing newer technology and software which changed the way of using the Web/Internet.
Web 2.0 has made websites become more dynamic, it has made them easier for users to design a more functional, easier to update website by introducing dynamic web pages from static web pages. This provides the user a website that's easier to manage and it can be designed so that it interacts with the users unlike static pages which are read-only web pages. Web 2.0 has also moved onto a more social & interactive generation.
Some of the features of Web 2.0:
Online applications
Online applications allow the user to have access to applications over the internet or a network. The applications would be very functional as instead of purchasing and installing just on your computer, the applications would become accessible from anywhere connected to the internet. For example, Google drive is an online application. The application can be accessed by having a Google account, the drive provides the user with ability to store files, create documents, presentations, drawings etc. This online application makes a good web function that would be very useful for working, storage and the ability to be accessed anywhere.
Cloud computing
Cloud computing is where programs, files, information, documents can be stored in the "cloud" keeping all of your resources in a location that the user can retrieve at any time. The "location" where your information is stored is on a number of servers, hosted on the internet which can be easily managed. This can take the weight off the user's computer usage when running programs, making the computer run the applications on the "cloud" instead of on the computer. The computer would only just to use a web browser to gain access to the cloud and the cloud's servers will take care of the running of the programs. Cloud computing can also be used on smaller devices such as mobile phones to store files, information etc. It opens up web functionality of being accessible everywhere, it could also act as a backup file if the computer's data gets deleted accidentally.
Web 2.0 has made websites become more dynamic, it has made them easier for users to design a more functional, easier to update website by introducing dynamic web pages from static web pages. This provides the user a website that's easier to manage and it can be designed so that it interacts with the users unlike static pages which are read-only web pages. Web 2.0 has also moved onto a more social & interactive generation.
Some of the features of Web 2.0:
- Social networking sites
- Blogs
- Wiki pages
Online applications
Online applications allow the user to have access to applications over the internet or a network. The applications would be very functional as instead of purchasing and installing just on your computer, the applications would become accessible from anywhere connected to the internet. For example, Google drive is an online application. The application can be accessed by having a Google account, the drive provides the user with ability to store files, create documents, presentations, drawings etc. This online application makes a good web function that would be very useful for working, storage and the ability to be accessed anywhere.
Cloud computing
Cloud computing is where programs, files, information, documents can be stored in the "cloud" keeping all of your resources in a location that the user can retrieve at any time. The "location" where your information is stored is on a number of servers, hosted on the internet which can be easily managed. This can take the weight off the user's computer usage when running programs, making the computer run the applications on the "cloud" instead of on the computer. The computer would only just to use a web browser to gain access to the cloud and the cloud's servers will take care of the running of the programs. Cloud computing can also be used on smaller devices such as mobile phones to store files, information etc. It opens up web functionality of being accessible everywhere, it could also act as a backup file if the computer's data gets deleted accidentally.
Image source:http://www.flickr.com/photos/mwichary/3010024274/