Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » D »

data type

In programming, classification of a particular type of information. It is easy for humans to distinguish between different types of data. We can usually tell at a glance whether a number is a percentage, a time, or an amount of money. We do this through special symbols -- %, :, and $ -- that indicate the data's type. Similarly, a computer uses special internal codes to keep track of the different types of data it processes.

Most programming languages require the programmer to declare the data type of every data object, and most database systems require the user to specify the type of each data field. The available data types vary from one programming language to another, and from one database application to another, but the following usually exist in one form or another:

  • integer : In more common parlance, whole number; a number that has no fractional part.
  • floating-point :A number with a decimal point. For example, 3 is an integer, but 3.5 is a floating-point number.
  • character (text ): Readable text






  • TECH RESOURCES FROM OUR PARTNERS
    DID YOU KNOW?
    Who's Moving Ahead in Cloud Computing?

    The future remains, well, cloudy. But either way: Amazon, look out. Microsoft is gaining fast. Read More »

    Hype Versus Action in the Developer's World

    Often times technologies start as hype but with time become adopted. As a developer or technologist, it is worth reading the hype and knowing the... Read More »

    Microsoft Hyper-V Network Virtualization Q&A

    The top 5 Hyper-V questions with answers provided by Nirmal Sharma, a MCSEx3, MCITP and Microsoft MVP in Directory Services. Read More »

    QUICK REFERENCE
    How to Create a Desktop Shortcut to a Website

    This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Read More »

    Flash Data Storage Vendor Trends

    Although it is almost impossible to keep up with the pace of ongoing product releases, here are three recent highlights in the flash data storage... Read More »

    15 Important Big Data Facts for IT Professionals

    Keeping track of big data trends, research and statistics gives IT professionals  a solid foundation to plan big data projects. Here are 15... Read More »