Website

The usap.gov website
The nasa.gov home page in 2015
Server-side programming language usage in 2016.

Collection of web pages and related content that is identified by a common domain name and published on at least one web server.

- Website
The usap.gov website

25 related topics

Alpha

Diagram illustrating user requests to an Elasticsearch cluster being distributed by a load balancer. (Example for Wikipedia.)

Load balancing (computing)

In computing, load balancing refers to the process of distributing a set of tasks over a set of resources (computing units), with the aim of making their overall processing more efficient.

In computing, load balancing refers to the process of distributing a set of tasks over a set of resources (computing units), with the aim of making their overall processing more efficient.

Diagram illustrating user requests to an Elasticsearch cluster being distributed by a load balancer. (Example for Wikipedia.)
Load balancing algorithm depending on divisibility of tasks
Master-Worker and bottleneck

Commonly load-balanced systems include popular web sites, large Internet Relay Chat networks, high-bandwidth File Transfer Protocol (FTP) sites, Network News Transfer Protocol (NNTP) servers, Domain Name System (DNS) servers, and databases.

An example of a hyperlink as commonly seen in a web browser, with a mouse pointer hovering above it

Hyperlink

Reference to data that the user can follow by clicking or tapping.

Reference to data that the user can follow by clicking or tapping.

An example of a hyperlink as commonly seen in a web browser, with a mouse pointer hovering above it
Several documents being connected by hyperlinks
How internal MediaWiki links work when one wants to create a link that displays words different from the linked page's title.
Douglas Engelbart and his team at SRI, 1969

Somewhat controversially, Vuestar Technologies has tried to enforce patents applied for by its owner, Ronald Neville Langford, around the world relating to search techniques using hyperlinked images to other websites or web pages.

The source code for a simple computer program written in the C programming language. The gray lines are comments that help explain the program to humans in a natural language. When compiled and run, it will give the output "Hello, world!".

Programming language

Any set of rules that converts strings, or graphical program elements in the case of visual programming languages, to various kinds of machine code output.

Any set of rules that converts strings, or graphical program elements in the case of visual programming languages, to various kinds of machine code output.

The source code for a simple computer program written in the C programming language. The gray lines are comments that help explain the program to humans in a natural language. When compiled and run, it will give the output "Hello, world!".
A selection of programming language textbooks; only a few of the thousands available.
Parse tree of Python code with inset tokenization
Syntax highlighting is often used to aid programmers in recognizing elements of source code. The language above is Python.

Perl, originally a Unix scripting tool first released in 1987, became common in dynamic websites.

An SQL select statement and its result

Database

Organized collection of data stored and accessed electronically.

Organized collection of data stored and accessed electronically.

An SQL select statement and its result
Basic structure of navigational CODASYL database model
In the relational model, records are "linked" using virtual keys not stored in the database but defined as needed between the data contained in the records.
Collage of five types of database models
Traditional view of data

Examples include computerized library systems, flight reservation systems, computerized parts inventory systems, and many content management systems that store websites as collections of webpages in a database.

PHP

General-purpose scripting language geared toward web development.

General-purpose scripting language geared toward web development.

This is an example of PHP code for the WordPress content management system.
The elePHPant, PHP mascot
A "Hello World" application in PHP 7.4 running on its built-in development server
Example output of the phpinfo function in PHP 7.1
A broad overview of the LAMP software bundle, displayed here together with Squid
Dynamic web page: example of server-side scripting (PHP and MySQL)

, PHP was used in more than 240 million websites (39% of those sampled) and was installed on 2.1 million web servers.