POJO meaning in Information Technology ?

In software engineering, a plain old Java object (POJO) is an ordinary Java object, not bound by any special restriction. The term was coined by Martin Fowler, Rebecca Parsons and Josh MacKenzie in September 2000:

"We wondered why people were so against using regular objects in their systems and concluded that it was because simple objects lacked a fancy name. So we gave them one, and it's caught on very nicely."

The term "POJO" initially denoted a Java object which does not follow any of the major Java object models, conventions, or frameworks; nowadays "POJO" may be used as an acronym for plain old JavaScript object as well, in which case the term denotes a JavaScript object of similar pedigree.

The term continues an acronym pattern to coin retronyms for technologies that do not use fancy new features: plain old Ruby object (PORO) in Ruby, plain old telephone service (POTS) in telephony and Plain Old Documentation (pod) in Perl. The equivalent to POJO on the .NET Framework is plain Old CLR object (POCO). For PHP, it is plain old PHP object (POPO).

The POJO phenomenon has most likely gained widespread acceptance because of the need for a common and easily understood term that contrasts with complicated object frameworks.