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- этимология
Что (кто) такое cooperative multitasking - определение
cooperative multitasking
<parallel, operating system> A form of multitasking where it
is the responsibility of the currently running task to give up
the processor to allow other tasks to run. This contrasts
with pre-emptive multitasking where the task scheduler
periodically suspends the running task and restarts another.
Cooperative multitasking requires the programmer to place
calls at suitable points in his code to allow his task to be
descheduled which is not always easy if there is no obvious
top-level main loop or some routines run for a long time.
If a task does not allow itself to be descheduled all other
tasks on the system will appear to "freeze" and will not
respond to user action.
The advantage of cooperative multitasking is that the
programmer knows where the program will be descheduled and can
make sure that this will not cause unwanted interaction with
other processes. Under pre-emptive multitasking, the
scheduler must ensure that sufficient state for each process
is saved and restored that they will not interfere. Thus
cooperative multitasking can have lower overheads than
pre-emptive multitasking because of the greater control it
offers over when a task may be descheduled.
Cooperative multitasking is used in RISC OS, {Microsoft
Windows} and Macintosh System 7.
(1995-03-20)
Cooperative multitasking
Cooperative multitasking, also known as non-preemptive multitasking, is a style of computer multitasking in which the operating system never initiates a context switch from a running process to another process. Instead, in order to run multiple applications concurrently, processes voluntarily yield control periodically or when idle or logically blocked.
Human multitasking
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ABILITY TO PERFORM MORE THAN ONE ACTIVITY AT THE SAME TIME
Human Multitasking
Human multitasking is the concept that one can split their attention on more than one task or activity at the same time, such as speaking on the phone while driving a car. Multitasking can result in time wasted due to human context switching and becoming prone to errors due to insufficient attention.
Википедия
Cooperative multitasking
Cooperative multitasking, also known as non-preemptive multitasking, is a style of computer multitasking in which the operating system never initiates a context switch from a running process to another process. Instead, in order to run multiple applications concurrently, processes voluntarily yield control periodically or when idle or logically blocked.
