MySQL Definition
MySQL, pronounced either "My S-Q-L" or "My Sequel," is an open source relational database management system. It is based on the structure query language (SQL), which is used for adding, removing, and modifying information in the database. Standard SQL commands, such as ADD, DROP, INSERT, and UPDATE can be used with MySQL.
MySQL can be used for a variety of applications, but is most commonly found on Web servers. A website that uses MySQL may include Web pages that access inform...
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Database Definition
Database Definition
A database is a data structure that stores organized information. Most databases contain multiple tables, which may each include several different fields. For example, a company database may include tables for products, employees, and financial records. Each of these tables would have different fields that are relevant to the information stored in the table.
Nearly all e-commerce sites uses databases to store product inventory and customer information. These sites use a data...
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SQL Definition
SQL Definition
Stands for "Structured Query Language," and can be pronounced as either "sequel" or "S-Q-L." It is a query language used for accessing and modifying information in a database. Some common SQL commands include "insert," "update," and "delete." The language was first created by IBM in 1975 and was called SEQUEL for "Structured English Query Language." Since then, it has undergone a number of changes, many coming from Oracle products.
Today, SQL is commonly used for Web database dev...
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Perl Definition
Perl Definition
Perl actually stands for "Practical Extraction and Report Language," but you don't really need to know that unless you want to impress your nerd friends. Perl is a scripting language which uses a syntax similar to C/C++. It is commonly used by Web programmers to create scripts for Web servers. Perl is especially good at parsing text, so programmers often use it for reading and searching through text files.
As a regular computer user, you won't get to see Perl in action, since it...
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Script Definition
Script Definition
A computer script is a list of commands that are executed by a certain program or scripting engine. Scripts may be used to automate processes on a local computer or to generate Web pages on the Web. For example, DOS scripts and VB Scripts may be used to run processes on Windows machines, while AppleScript scripts can automate tasks on Macintosh computers. ASP, JSP, and PHP scripts are often run on Web servers to generate dynamic Web page content.
Script files are usually just ...
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JSP Definition
JSP Definition
Stands for "Java Server Page." This standard was developed by Sun Microsystems as an alternative to Microsoft's active server page (ASP) technology. JSP pages are similar to ASP pages in that they are compiled on the server, rather than in a user's Web browser. After all, they don't call them "server pages" for nothing. However, JSP is Java-based, whereas ASP is Visual Basic-based. JSP pages are useful for building dynamic Web sites and accessing database information on a Web serv...
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Responsive Web Design
Responsive Web Design
Responsive web design (or "RWD") is a type of web design that provides a customized viewing experience for different browser platforms. A website created with RWD will display a different interface depending on what device is used to access the site. For example, a responsive website may appear one way on a laptop, another way on a tablet, and still another way on smartphone.
Today, many people access websites from mobile devices, rather than desktop computers or laptops...
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File Extension Definition
File Extension Definition
A file extension (or simply "extension") is the suffix at the end of a filename that indicates what type of file it is. For example, in the filename "myreport.txt," the .TXT is the file extension. It indicates the file is a text document. Some other examples include .DOCX, which is used for Microsoft Word documents, and .PSD, which is the standard file extension for Photoshop documents.
While most file extensions are three characters in length, they can be as short as ...
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Download Definition
Download Definition
Download can be used as either a verb or a noun. As a verb, it refers to the process of receiving data over the Internet. Downloading is the opposite of uploading, or sending data to another system over the Internet. As a noun, download may refer to either a file that is retrieved from the Internet or the process of downloading a file.
Every time you use the Internet, you download data. For example, each time you visit a webpage, your computer or mobile device must download ...
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Trojan Horse Definition
Trojan Horse Definition
In Greek mythology, there is a story about the Trojan War. This war lasted many years, as the Greeks could not penetrate the heavily barricaded city of Troy. So one day, a few of the Greek soldiers brought the people of Troy a large wooden horse, which they accepted as a peace offering. The horse was moved inside the city walls, where it sat until the night. After the people of the city had fallen asleep, Greek soldiers jumped out of the wooden horse, opened the gates to ...
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