Larry Keith Loucks

Name borders

The problem of name resolution for cascaded names which spans multiple naming systems is discussed and the concept of name border is introduced. Name borders are used in resolving names that span two or more name spaces, possibly in a distributed environment. A name border between two name spaces isolates the needed information to link the two name spaces while preserving the autonomy and independence of each name space. The use of name borders for cascaded name resolution solves the problem of multiple syntax for name representation m different naming systems.

A microkernel-based operating system for personal digital assistants

There are a number of projects currently underway to create a new class of computing device called a personal digital assistant (PDA). These devices are hand-held computing systems that provide a range of applications including personal productivity, connectivity, entertainment and field data collection. One of the most important problems to be solved in developing practical PDAs is to provide a reasonable operating system for the application software that runs on the PDA. We believe that previous work on a microkernel using the Mach technology (D.L. Black et al., 1992) and operating system personalities provides the best foundation for such an operating system. Our microkernel offers modularity, a message-passing programming paradigm and real time features, all of which are important in a PDA operating system. Reusing the code developed for, or to run on our microkernel on a PDA also has obvious economic benefits. However, our standard microkernel and microkernel-based products require a number of changes to make them smaller and to adapt them to the PDA environment.<<ETX>>

Advanced interactive executive (AIX) operating system overview

The Advanced Interactive Executive (AIX) is the operating system used in the RT Personal Computer. It is a portable operating system architecture that is suitable for a wide range of computer architectures and customer requirements. Discussed in this paper are the structure and services of AIX.