Mach

An operating system kernel developed at Carnegie-Mellon University to support distributed and parallel computation.

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A collection of information that defines the appearance and function of an application menu.

A data structure used to define a menu.

(1) A packet of data used for communication between the Presentation Manager interface and Presentation Manager applications. (2) Information not requested by a user but displayed in response to an unexpected event, or when something undesirable could occur.

A Workplace tool that generates low-level remote procedure calls between a client and server process using the microkernel IPC mechanism. The code that is generated includes routines to pack and unpack the messages used to communicate between processes.

An action that can be performed on an object.

In the Workplace architecture, the component of the IBM Microkernel Product that runs in the most privileged state of the computer and controls the basic operation of the computer. It includes only those functions required to provide a set of abstract processing environments and to permit applications to work together as clients and servers. These are IPC, ports, tasks, threads, and virtual memory management.

The system services provided with the IBM Microkernel product. There are three classes of services: Kernel Services, which control the basic operation of the machine; Microkernel Shared Services, which run on the microkernel and provide boot, default pager, and root name services; and Device Services, which include device and I/O management services.

Multiprocessor.

Machine-readable information.

The Workplace personality that manages the collection of Virtual x86` Machines. The MVM Personality provides DOS/WINDOWS/DPMI program compatibility on a PowerPC. It manages and supports execution of multiple x86 DOS and Windows programs (in real mode and protect mode) each in its own virtual x86 machine.

(1) A computer including two or more processor that have common access to a main storage. (2) A system of two or more processing units, or processors that can communicate without manual intervention.

Pertaining to two or more people who use the services of a processor within a given period of time; usage is normally serial unless otherwise specified.

Multiple virtual machines.

The server that manages the collection of Virtual x86 Machines.