13.4. Systems where shared-memory communication is appropriate
It may be appropriate for a programmer to write a concurrent program in a language which provides shared-memory IPC for the following kinds of system:
An unprotected system such as those implemented for many early PCs. All processes and the operating system run in a single shared address space or may use the real, unmapped addresses of the machine.
A system in which the language runtime system functions as a simple operating system. This is the case in many real-time process control and embedded control systems.
A system in which multi-threading is provided at the application level by the language runtime system. An example is a server serving simultaneous clients.
The program may implement ...
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