Oracle Spatial is an extension to Oracle DB which provides support for location data.

Version 5.5.x (August 2004) of the Apache Tomcat servlet container. Use only if your question is specifically related to features of this version.

A license key is a type of software protection and can take many forms. In some form or fashion they grant permission to an application to execute.

The null-coalescing operator (?? in PHP 7) is used to define a default value for nullable value types or reference types. It returns the left-hand operand if the operand is not null; otherwise it returns the right operand.

Metro is a mature web services framework for Java.

A Hash Table is a data structure used to store data in the form of Key=>Value pairs. A Distributed Hash Table (DHT) is basically a hash table distributed across a network of computers(nodes). A DHT uses a Routing Protocol to determine which node to store a piece of data on.

Sproutcore is an advanced HTML5 application framework.

bjam is the old name of the engine used by Boost.Build The new name is b2

Partial application is a programming technique for passing less than the full number of arguments to a function, in order to yield a new function that can be used later. It is particularly common in functional languages that support currying.

Transliteration refers to the process of mapping letters or glyphs from one character encoding to another