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What is the principal disadvantge of too much multiprogramming?
The principal disadvantge of too much multiprogramming is the overhead of excesssive context-switching. If the context-switch rate is too high, the overhead can actually overwhelm the benefit of multiprogramming.
Explain what context switching mode is and can a PC run in context switchin mode?
explain what context switching mode is. and can a PC run in context switching mode
How is the term 'switching' used in context?
Switching is typically used in the context of switching phone lines or switching digital networks. It could also be used in the context of switching companies that provide services such as water or electric.
When we say a system is a multiprogramming system?
Multiprogramming is collecting several jobs in a job pool and the OS selects the job from the pool so that the CPU has one job to execute , in case of any IO request for the job in execution the CPU switches to another job here switching is less compared to multitasking.So a computer system which allows such type of switching in between jobs is called a multiprogramming system. Please make note that multitasking is done by user but multiprogramming is done by operating system only.
Difference between process switching and context switching?
It has been suggested that process switching and thread switching be merged into this article or section. (Discuss) Proposed since April 2012.
'What is the difference between multiprogramming and multitasking and what is meaning of a task if we consider a task as a program then the concept will be multiprogramming then what is the differenc?
First of all there is difference between program and a task. There may be multiple tasks running related to one program at the same time. so if the processor is busy in multiple tasks related to one program then it is multitasking. But if the multiple tasks which the processor is executing concurrently are related to different independent programs then the concept is know as multiprogramming.
Is windows operating system multiprogramming or multitasking?
multiprogramming
What is the difference between context switching and mode switching?
Context means ,in terms of computers, the status of various general purpose registers having some process specific data values and even some other structures dependent on computer hardware,i.e. PCB etc. Now what context switch means ,""switching from one status of registers set to another status of registers set."" This context may be of a process or thread etc. Now when we are talking about any type of context switching,,it means we are requesting the KERNEL to save the current context anywhere,and fetch the next context for us.. It requires a mode switch between user mode to kernel mode, so that required switching may be performed in right order.... Isn't it simple ,,or what.
When was THE multiprogramming system created?
THE multiprogramming system was created in 1968.
What is a context switching?
Context switching is how the computer's operating system multitasks different processes. It lets one process run for a while and then saves a copy of the process' run state (such as register values) off to the side, restores the run state of the next process back into the processor, and runs it for a while. Context switching is this process of swapping one program out of the CPU and replacing it with another process.
Is multitasking a logical extension of multiprogramming?
timesharing is logical extention of multiprogramming.
Briefly compare active and passive multiprogramming?
When a program that is being processed by the CPU issues an I/O command, control is passed to the I/O processor and the CPU is freed to process other programs. This is known as passive multiprogramming. The problem with this, is that the interruptions are primarily controlled by the programs and not the CPU. As an answer to this problem, the CPU was given the control with the advent of active multiprogramming. Active multiprogramming enabled a program to use a preset slice of CPU time before putting the program on hold to process another program. This became the advent of CPU time slicing and became the foundation for time-sharing systems in the 1960's and forward.Active is to do something with energy, while passive is to accept what comes without putting much effort forth.
