You are in the: Small Business Computing Channelarrow View Sites +
Small Business Technology
» ECommerce-Guide | Small Business Computing | Webopedia | WinPlanet |  »Close
Enter a word for a definition... ...or choose a computer category.

   Term of the Day
   New Terms
   New Links
   Quick Reference
   Did You Know?
   Tech Support
   Webopedia Jobs
   About Us
   Link to Us

talk to us
   Submit a URL
   Suggest a Term
   Report an Error
Internet Lists
Internet News
Internet Resources
Linux/Open Source
Personal Technology
Small Business
Windows Technology
xSP Resources
Corporate Info
Tech Jobs
E-mail Offers
  Be a Commerce Partner

Last modified: Sunday, September 01, 1996 

A symbol or name that stands for a value. For example, in the expression


x and y are variables. Variables can represent numeric values, characters, character strings, or memory addresses.

Variables play an important role in computer programming because they enable programmers to write flexible programs. Rather than entering data directly into a program, a programmer can use variables to represent the data. Then, when the program is executed, the variables are replaced with real data. This makes it possible for the same program to process different sets of data.

Every variable has a name, called the variable name, and a data type. A variable's data type indicates what sort of value the variable represents, such as whether it is an integer, a floating-point number, or a character.

The opposite of a variable is a constant. Constants are values that never change. Because of their inflexibility, constants are used less often than variables in programming.

E-mail this definition to a colleague

Sponsored listings

J.G. Wentworth: Annuity Purchase Programs - Provides flow of capital to individuals through exchange of a structured settlement or annuity for immediate cash payment.

The Annuity Shoppe: Annuity US Agents Only - US Rates and quotes for over 350 fixed annuities. Over 25 Carriers, searchable annuity database, equity indexed, immediate. Fixed annuity calculators.

Digi-Key: Search for Resistors - Broad-line distributor web site features real-time stock status and pricing, online ordering, RFQ, technical support, product datasheets and photos.

For pages about variable . Also check out the following links!

Related Links

Sponsored listings

Thomas Global Register: Resistors - Industrial product directory allows users to send RFQs, view catalogues and compare suppliers. Search for suppliers of Resistors. Retirement Annuities - Provides online comparison of rates and quotes for retirement annuities from companies in all 50 states, as well as ratings and advice.

Ambassador Components: Resistors - Electronic component supplier of obsolete components and semiconductors. Includes resistors.

NIC Components: Resistors - Designs, manufactures, and supplies passive components, capacitors, resistors, magnetics and specialty products worldwide.

Newark InOne: Variable Capacitors - View our online selection of capacitors. Chat online with product tech support and place your order online 24x7.

related categories


related terms

character string



data type



Give Us Your

variable Products
Compare Products,Prices and Stores

Shop by Category:
Indoor Grills and Sandwich Makers
125 Model Matches

Tools and Hardware
5276 Store Offers

Flat Panel Televisions
108 Model Matches

Projection Televisions
89 Model Matches

JupiterWeb networks:

Search JupiterWeb:

Jupitermedia Corporation has three divisions:
Jupiterimages, JupiterWeb and JupiterResearch

Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

Jupitermedia Corporate Info | Newsletters | Tech Jobs | Shopping | E-mail Offers