What does the alpha,beta,rc,trial in the software version mean?

Transferred from: http://blog.csdn.net/linxinzheng/article/details/2201043

Version number:
V (Version): That is, versions, usually with a number representing the version number. (Example: EVEREST Ultimate v4.20.1188 Beta)
Build: A way of marking a version number with a number or date. (Example: VeryCD eMule v0.48a Build 071112)
Sp:service Pack, upgrade package. (Example: Windows XP sp 2/vista SP 1)

Development Phase Division:
Alpha version: Beta version, internal communication or professional testers. More bugs, ordinary users should not install.
Beta (Beta) version: Public beta, professional enthusiasts large-scale trial, there are some defects, this version is not suitable for general user installation.
Gamma version: A fairly mature beta, similar to the upcoming release of the official version.
RC version: is the release candidate abbreviation, meaning is the release countdown, candidate version, in the gamma phase, the version has completed the full functionality and clear most of the bug. At this stage only the bug will be removed and no major changes will be made to the software. From Alpha to Beta to Gamma is an improved relationship, but RC1 and RC2 are often trade-offs.
Final: Official version.


Authorization and functional Partitioning:
Trial: Trial version, usually have a time limit, some of the trial version of the software is also a certain limit on the functionality. can be registered or purchased as a full version. ,

Unregistered: Unregistered version, usually no time limit, in the functional relative to the official version has made certain restrictions. can be registered or purchased as a full version.
Demo: Demo version, only the integration of several features in the official version, can not be upgraded to the official version.
Lite: Lite version.
Full version: Complete edition, belongs to the official version.

Language Division:
Sc:simplified Chinese Simplified Chinese version.
CN: Simplified Chinese version
GBK: Simplified Chinese Character code Extension Specification Edition.
Tc:traditional Chinese Traditional Chinese version.
CHT: Traditional Chinese version
BIG5: Traditional Chinese large five yards version.
EN: English version
MultiLanguage: Multi-language version
The Utf8:unicode transformation Format 8 bit is not a good solution for existing Chinese systems.




Other versions
Enhance: The enhanced version or the enhanced version belongs to the official version 1
Free: Freedom version
Release: The release has a time limit
Upgrade: Upgrade Version
Retail: Sales Edition
CardWare: A shared software, as long as the author replies to an email or postcard. (some authors and thus provide registration code, etc.), this form is now rare. /S
Plus: This is an enhanced version, but most of this is enhanced by the program interface and multimedia functions.
Preview: Previewing version
Corporation & Enterprise: Corporate Edition
Standards: Standard Edition
Mini: Mini version is also called Lite version only the most basic functions
Premium: Your price version
Professional: Professional Edition
Express: Easy version

Deluxe: Deluxe Edition
Regged: Registered Version

What does the alpha,beta,rc,trial in the software version mean?