Yanesi
Martinez
Technology
12th
Dec. 10, 2013
lunes, 9 de diciembre de 2013
Terminology of PHP
PHP is a server scripting language, and is a powerful tool for making dynamic and interactive Web pages quickly.
PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.
Example
<!DOCTYPE html>
<html>
<body>
<?php
echo "My first PHP script!";
?>
</body>
</html>
<html>
<body>
<?php
echo "My first PHP script!";
?>
</body>
</html>
HTML, CSS, PHP
- HyperText Markup Language (HTML) is the main markup language for creating web pages and other information that can be displayed in a web browser. HTML is written in the form of HTML elements consisting of tags enclosed in angle brackets (like
<html>), within the web page content. HTML tags most commonly come in pairs like<h1>and</h1>, although some tags represent empty elements and so are unpaired, for example<img>.
- Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation semantics (the look and formatting) of a document written in a markup language. Its most common application is to style web pages written in HTML and XHTML, but the language can also be applied to any kind of XML document, including plain XML, SVG and XUL. CSS is designed primarily to enable the separation of document content (written in HTML or a similar markup language) from document presentation, including elements such as the layout,colors, and fonts.
- PHP is a server-side scripting language designed for web development but also used as a general-purpose programming language. PHP is now installed on more than 244 million websitesand 2.1 million web servers.PHP code is interpreted by a web server with a PHP processor module, which generates the resulting web page: PHP commands can be embedded directly into an HTML source document rather than calling an external file to process data.
Programs
Definition
The program has an executable form that the computer can use directly to
execute the instructions. A computer requires programs to function,
typically executing the
program's instructions in a central processor. It´s a sequence of instructions, written to perform a specified task with a computer
Types of Programs
-Development programs - programs that allow you
to create (write) other
programs using variousprogramming languages
- System software - programs that
manage computer resources (hardware) to
enable to user to run other programs.
- Business applications - applications that are used in
business, from cash registers over the calculation of
salaries to the program for the stock exchange operations
- Graphics programs - programs that turn your
computer into a tool
for drawing, architectural design, video editing
(the use of computer in the TV stations)
- Applications for audio processing -
various programs that allow composing on the
computer and audio processing
- Programs in the field of entertainment - computer games
- Research programs - programs to solve problems in
mathematics, physics, mechanics, etc.
- Programs for computer networks -
applications for network design and operation
of computers that are connected to each other in
the network, starting from the local network where are
connected by two or more computers to the
global network which is used every form of
connection and communication between computers (fixed or mobile
telephony, satellite communications, optical fiber cables, etc.)
- Programs to design and manage
databases - typically are defined as business
applications, and are used to collect and process vast amounts
of variety of information.
- Programs to control and manage a variety
of machines - robots, processing machines in
production in factories, in medicine, etc.
Photos
Programmer
A programmer, computer programmer, developer, coder, or software engineer is a person who writes computer software. The term computer programmer can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst. A programmer's primary computer language is often prefixed to the above titles, and those who work in a web environment often prefix their titles with Web. The term programmer can be used to refer to a software developer, Web developer, mobile applications developer, embedded firmware developer, software engineer,computer scientist, or software analyst.
Ada Lovelace
(10 December 1815 – 27 November 1852) was an
English mathematician and writer chiefly known for her work on Charles
Babbage's early mechanical general-purpose computer, the Analytical Engine. Throughout her life, Ada was strongly interested
in scientific developments and fads of the day, including phrenology and mesmerism. Even after her famous work with Babbage, Ada continued to work on
other projects. In 1844, she commented to a friend Woronzow Greig about her
desire to create a mathematical model for how the brain gives rise to thoughts
and nerves to feelings ("a calculus of the nervous system").
Charles Babbage
(26 December 1791 – 18 October 1871) was
a mathematician, philosopher, inventor and mechanical engineer, who is
best remembered now for originating the concept of a programmable
computer. Babbage is credited with inventing the first mechanical
computer that eventually led to more
complex designs. His varied work in other fields has led him to be described as
"pre-eminent" among the many polymaths of his century.
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