What is HTML ?

HTML is a markup language for describing web documents (web pages).

  • HTML stands for Hyper Text Markup Language
  • A markup language is a set of markup tags
  • html documents are described by html tags
  • Each html tag describes different document content


What is CSS ?

CSS is a style language that defines layout of HTML documents.

  • CSS stands for Cascading Style Sheets
  • css defines how HTML elements are to be displayed
  • Styles were added to HTML 4.0 to solve a problem
  • css saves a lot of work
  • External Style Sheets are stored in CSS files


What is PHP ?

PHP is a server-side scripting language created in 1995 and designed for web development.

  • php is an acronym for "PHP: Hypertext Preprocessor"
  • php is a widely-used, open source scripting language
  • php scripts are executed on the server
  • php is free to download and use


What is SQL ?

SQL is a standardized query language to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.

  • sql can execute queries against a database
  • sql can retrieve data from a database
  • sql can insert records in a database
  • sql can update records in a database
  • sql can delete records from a database
  • sql can create new databases
  • sql can create new tables in a database
  • sql can create stored procedures in a database
  • sql can create views in a database
  • sql can set permissions on tables, procedures, and views



JAVASCRIPT is an interpreted programming or script language commonly used to create interactive effects within web browsers.

  • JavaScript Can Change HTML Content
  • JavaScript Can Change HTML Attributes
  • JavaScript Can Change HTML Styles (CSS)
  • JavaScript Can Validate Data


What is AJAX ?

AJAX is a client-side script that exchanging data with a server/database, and updates part of a web page without reloading the entire page.

  • Ajax = Asynchronous JavaScript and XML.
  • Ajax is a technique for creating fast and dynamic web pages.
  • Ajax allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
  • Classic web pages, (which do not use AJAX) must reload the entire page if the content need change.


What is JQUERY ?

JQUERY is feature-rich JavaScript library. It is a well written JavaScript code that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.

  • jQuery is a lightweight, "write less, do more", JavaScript library.
  • The purpose of jQuery is to make it much easier to use JavaScript on your website.
  • jQuery takes a lot of common tasks that require many lines of JavaScript code to accomplish, and wraps them into methods that you can call with a single line of code.
  • jQuery also simplifies a lot of the complicated things from JavaScript, like AJAX calls and DOM manipulation.