11. Promise pipelining should be distinguished from parallel asynchronous message passing . 12. Message passing may be implemented by various mechanisms, including channels.13. Shared memory and message passing concurrency have different performance characteristics. 14. Exec also provides access to other libraries and high-level inter-process communication via message passing . 15. There are many alternatives for the message passing mechanism, including pure HTTP, message queues. 16. Since the Amiga has only one address space, Exec message passing is quite efficient. 17. Web browsers and web servers are examples of processes that communicate by message passing . 18. Tasks can have entries for synchronisation ( a form of synchronous message passing ). 19. But messages passed through the United States on Wednesday apparently succeeded in lowering tensions. 20. Asynchronous versus synchronous models for message passing may be considered.
