What is meant by resource manager?

This is what I found through google..... A software entity that performs resource management. www.cs.Utah.edu/~regehr/papers/diss/doc-wwwap1.html Provides access to shared data. Usually a resource manager is a database server or a file-access system. www.roguewave.com/support/docs/sourcepro/dbxaug/B.html A process that maps resource and resource-class abstractions into calls and commands for one or more specific types of resources. A resource manager can be a standalone daemon, or it can be integrated into an application or subsystem directly. SD www.cepba.upc.es/docs/ibm_doc/manaix/aixbman/rsct/rsctgl.htm The Resource Manager is a part of Xlib that merges a database consisting of several ASCII files, a server property, and values hardcoded by the application, and determines a unique value for each resource of each widget. It resolves conflicts between multiple settings for the same resource according to its internal precedence rules, and provides the widget or application with the resulting value. barossa.ac3.edu.au/SGI_Developer/books/XLib_WinSys/sgi_html/go01.html