multitasking is an os method of allowing multiple processes to share the cpu.
multitasking is an os method of allowing multiple processes to share the cpu.
an os method of allowing multiple processes to share the cpu is?
multitasking
a common form of multitasking is time-sharing. time-sharing is a method to allow high responsiveness for interactive user applications. in time-sharing systems, context switches are performed rapidly, which makes it seem like multiple processes are being executed simultaneously on the same processor. this seeming execution of multiple processes simultaneously is called concurrency.









































for security and reliability, most modern operating systems prevent direct communication between independent processes, providing strictly mediated and controlled inter-process communication functionality.









































section::::representation.









































in general, a computer system process consists of (or is said to "own") the following resources:
process (computing)
in a kpn, processes communicate via unbounded fifo channels. processes read and write atomic data elements, or alternatively called tokens, from and to channels. writing to a channel is non-blocking, i.e. it always succeeds and does not stall the process, while reading from a channel is "blocking", i.e. a process that reads from an empty channel will stall and can only continue when the channel contains sufficient data items ("tokens"). processes are not allowed to test an input channel for existence of tokens without consuming them. a fifo cannot be consumed by multiple processes, nor can multiple processes produce to a single fifo. given a specific input (token) history for a process, the process must be deterministic so that it always produces the same outputs (tokens). timing or execution order of processes must not affect the result and therefore testing input channels for tokens is forbidden.
kahn process networks