Abstract: Calls to a conventional device driver interface of a first operating are converted to operate with a device driver interface of a second operating system. A convention interface is created to appear identical to the conventional device driver interface of the first operating system, but the conversion interface operate in the second operating system. The conversion interface permits a program utilizing the conventional device driver interface of the first operating system to operate in the second operating system without modification to the source code.

Abstract: Information is extracted in text form from a graphically oriented application program by commands originating in a test program module. The application module is configured compatibly with the test program module so that it responds with the requested information through the use of a hidden field or window embedded in the application module. The hidden field facilitates communication between the test program and application modules so that the exchanges are transparent to the application user.

Abstract: A system, method and computer program product which determines the relative performance of a local cache and renders the resultant performance increase (or in certain circumstances, the decrease) in cache performance of a stand-alone computer or networked "client" perceptible to the user in an especially intuitive manner. By accurately tracking and factoring in the times and amounts of data read from one or more source locations and the cache, the amount of time required to execute "read" operations without the cache can be determined. By dividing this time period by the actual time to execute the "read", the true relative performance of the cache may be determined.

Abstract: A system, method and computer program product which determines the relative performance of a local cache and renders the resultant performance increase (or in certain circumstances, the decrease) in cache performance of a stand-alone computer or networked "client" perceptible to the user in an especially intuitive manner. By accurately tracking and factoring in the times and amounts of data read from one or more source locations and the cache, the amount of time required to execute "read" operations without the cache can be determined. By dividing this time period by the actual time to execute the "read", the true relative performance of the cache may be determined.

Abstract: A system, method and computer program product of especial utility in providing a visual indication to a computer system user of the familiar "blinking", of pulsing, data access lights of conventional hardware data sources such as disk drives, CDROM drives and network connections in order to illustrate data cache "hits" and "misses" of an inherently computer program based caching function by incorporating simulated access lights as part of a graphical user interface ("GUI") for a data caching computer program. The GUI then allows a system user to intuitively visualize how effectively the data cache is functioning with respect to data which is accessed from the cache and data which must be accessed from another relatively more slow access time data source.