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     HP NCS 1.5.1 for the HP 3000 Technical Data
     The NCS 1.5.1 Product is the Network Computing System Remote Procedure
     Call version 1.5.1 for our HP 3000 MPE/iX systems. NCS 1.5.1  provides
     capabilities for transparently making network resources available to
     users and applications by allowing applications written to NCS 1.5.1 to
     be distributed.
     
     [Figure 1 (HP NCS 1.5.1 for the HP 3000)  Caption: none]
     
     NCS 1.5.1 is the basis for the NCS component of DCE, OSF's Distributed
     Computing Environment. By providing NCS 1.5.1 for MPE/iX, a migration
     path is provided for MPE applications moving to DCE.
        NCS 1.5.1 is a Remote Procedure Call. It allows remote execution of
     client procedures on servers throughout the network. NCS RPC makes it
     possible to develop and run application procedures remotely allowing
     them to use network resources without causing network traffic, improving
     performance for enterprise-wide data access and allowing network
     resource scalability for future growth.
     
     NCS provides the base foundation for OSF's DCE, the enabling technology
     for enterprise-wide heterogenous distributed computing in the future.
     NCS 1.5.1 on MPE/iX provides a strong foundation of growth for HP 3000
     customers moving to DCE environments by enabling multivendor application
     integration. NCS also provides the HP 3000 with improved capabilities
     for building distributed applications and integrating existing
     applications, providing a core foundation for distributed OLTP and data
     access applications in the future.
     
     Benefits of NCS:
     o Optimum Use of Network Resources:  By using NCS RPC, parts of
       applications can be split to run on server systems closer to the data.
       This allows better use of the network, faster data access, and better
       use of processing power.
     
     o Multivendor Application Integration:  NCS 1.5.1 is adopted by the
       major vendors and is the basis for the DCE Remote Procedure Call. By
       developing applications using the NCS 1.5.1 RPC, the applications have
       an easy migration path to the DCE environment in the future. NCS 1.5.1
       will provide interoperability with the next generation of DCE
       environments.
     
     o Ease of Client/Server Application Development:  NCS 1.5.1 RPC enables
       applications to be written in a client-server module. Client
       applications can run specific procedures on servers to take advantage
       of server functionality. For example, an inventory application running
       on a client can have a data update procedure run directly on the
       appropriate database server and then automatically return results to
       the client upon procedure completion.
     
     NCS Product Structure
     NCS 1.5.1 for MPE/iX consists of two components:
        The Network Computing Kernel {NCK} is required to execute NCS
     applications, and the Network Interface Definition Language {NIDL} is
     required to actually develop the NCS 1.5.1 applications.

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        The NCK Kernel on MPE/iX provides runtime support for distributed NCS
     applications and has been tested between NCK implementations on the
     HP/UX Series 9000/3xx and 8xx platforms. It consists of a set of
     intrinsics that are accessed by applications at runtime. This Kernel
     offers applications the ability to execute across networks and
     facilitates the communication to manage distributed processing.
        NIDL on MPE/iX is a tool for developing distributed applications. It
     provides the NCK Kernel the environment for building those applications
     by taking input and generating client and server stub programs.
        NCS 1.5.1 consists of both above components.
     
     Product Requirements:
     NCS 1.5.1 will run on MPE/iX version 4.0 or later. It requires the
     following network and system software to run:
     o MPE/iX C compiler and C runtime library
     o NS 3000/iX LAN LINK and Transport
     o NS 3000/iX Network Services
     
     Ordering Instructions:
     NCS 1.5.1 for MPE/iX is being shipped as a limited distribution product.
     For information on ordering NCS 1.5.1 for MPE/iX, contact the network
     sales center at 447-4444.
     
     From HP Networking Communications Specification Guide,
        5091-3821E, 9205, p 311
     Associated files:  la3821u1.plt, la3821u1.gal, a3821311.doc
     
     HP NCS 1.5.1 for the HP 3000 Technical Data