Introduction to web development
Console based application - Program gets executed in separate window. This is called console, where user interact by typing simple text. Mostly console based application are not used nowadays and maximum application are desktop, and web based.
Web Development
History
First website was created in 1991. For most individuals, internet mean website. But website development started in 1991, internet history began with US Defence department when ARPANET was launch in 1960. TCP/IP protocol were developed in 1970's enabling networks to communicate and Word Wide Web created by Tim Berners-Lee in 1991, transformed internet into global internetwork we know today.
Internet
- 1960's - Research into packet switching technology, the foundation for modern internet, emerged. ARPANET, the precursor to internet was developed by US.
- 1970's - TCP/IP protocol was developed enabling network to communicate.
- 1983: TCP/IP becomes the standard protocol for ARPANET.
- 1989-1990: Tim Berners-Lee invents the World Wide Web.
- The internet has since evolved into a vital infrastructure for communication, business, and entertainment, continuously shaping modern society.
Client Server
Website
The first website went live on 6th August 1991. It was made by Tim Berners Lee. He, invented World Wide Web in March 1989. He introduced first webserver, web browser and editor (worldwideweb.app), the hypertext transfer protocol(http) in 1990 and Hypertext Markup Language (HTML).
Website is a set of related webpages under a single domain name. Domain name is linked to website and may be hosted on shared or reserved server space. Domain names are registered in database known as domain name System (DNS).
Webpage
A web page is a document that can be displayed in a web browser such as Firefox, Google Chrome, Opera, Microsoft Edge, or Apple Safari. It is typically written in HTML (HyperText Markup Language) and can contain text, images, videos, and hyperlinks to other web pages and files. Each web page is identified by a unique URL (Uniform Resource Locator), which is entered into the browser's address bar to access the page.
Elements of a Web Page
A web page is a structured document that includes several key elements:
HTML: Specifies the content of the page, including text, images, and videos.
CSS (Cascading Style Sheets): Defines the presentation of the page, such as layout, colors, and fonts.
JavaScript: Adds interactivity to the page, enabling dynamic content and user interactions.
Types of Web Pages
There are two main types of web pages:
Static Web Pages: These pages are fixed and do not change unless manually updated by the creator. They are retrieved from the web server's file system without any modification.
Dynamic Web Pages: These pages are generated on-the-fly by the server, often using data from a database to fill out a template. An example of a dynamic page is a search engine results page.
How to Access a Web Page
To view a web page, you need a web browser. You can open a web page by entering its URL in the browser's address bar. For example, typing "https://www.example.com" will open the homepage of the example website. If you don't know the URL, you can use a search engine to find the web page
Web Page: A single document that can be displayed in a web browser
Website: A collection of web pages that are linked together and share a common domain name
Web Server: A computer that hosts one or more websites and serves web pages to users upon request
Search Engine: A web service that helps users find web pages from other websites. Examples include Google, Bing, and DuckDuckGo
Browers can understand HTML, CSS and JavaScript.
A web page is a document that can be displayed in a web browser such as Firefox, Google Chrome, Opera, Microsoft Edge, or Apple Safari. It is typically written in HTML (HyperText Markup Language) and can contain text, images, videos, and hyperlinks to other web pages and files. Each web page is identified by a unique URL (Uniform Resource Locator), which is entered into the browser's address bar to access the page.
Elements of a Web Page
A web page is a structured document that includes several key elements:
HTML: Specifies the content of the page, including text, images, and videos.
CSS (Cascading Style Sheets): Defines the presentation of the page, such as layout, colors, and fonts.
JavaScript: Adds interactivity to the page, enabling dynamic content and user interactions.
Types of Web Pages
There are two main types of web pages:
Static Web Pages: These pages are fixed and do not change unless manually updated by the creator. They are retrieved from the web server's file system without any modification.
Dynamic Web Pages: These pages are generated on-the-fly by the server, often using data from a database to fill out a template. An example of a dynamic page is a search engine results page.
How to Access a Web Page
To view a web page, you need a web browser. You can open a web page by entering its URL in the browser's address bar. For example, typing "https://www.example.com" will open the homepage of the example website. If you don't know the URL, you can use a search engine to find the web page
Web Page: A single document that can be displayed in a web browser
Website: A collection of web pages that are linked together and share a common domain name
Web Server: A computer that hosts one or more websites and serves web pages to users upon request
Search Engine: A web service that helps users find web pages from other websites. Examples include Google, Bing, and DuckDuckGo
Browers can understand HTML, CSS and JavaScript.
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