Source : WordNet®

Ptolemy
     n 1: Alexandrian astronomer who proposed a geocentric system of
          astronomy that was undisputed until Copernicus (2nd
          century AD) [syn: {Claudius Ptolemaeus}]
     2: an ancient dynasty of Macedonian kings who ruled Egypt from
        323 BC to 30 BC; founded by Ptolemy I and ended with
        Cleopatra [syn: {Ptolemaic dynasty}]

Source : Free On-Line Dictionary of Computing

Ptolemy
     
        A flexible foundation for the specification, simulation, and
        rapid prototyping of systems.  It is an {object-oriented}
        framework within which diverse models of computation can
        co-exist and interact.  For example, using Ptolemy a
        {data-flow} system can be easily connected to a hardware
        simulator which in turn may be connected to a discrete-event
        system.  Because of this, Ptolemy can be used to model entire
        systems.  In addition, Ptolemy now has code generation
        capabilities.  From a {flow graph} description, Ptolemy can
        generate both {C} code and {DSP} {assembly code} for rapid
        prototyping.  Note that code generation is not yet complete,
        and is included in the current release for demonstration
        purposes only.
     
        Version 0.4.1 includes a graphical algorithm layout, code
        generator and simulator.  It requires {C++}, {C} and has been
        ported to {Sun-4}, {MIPS}/{Ultrix}; {DSP56001}, {DSP96002}.
        Ptolemy is an active research project.
     
        {(ftp://ptolemy.bekeley.edu/pub/ptolemy/)}.  Mailing list:
        [email protected].  E-mail:
        .
     
        (1993-04-22)