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I believe what your referring to is the process of which the CPU (Central Processing Unit) of it basically "pausing" and "resuming" applications.... That's a really bad answer but It is rather hard to explain.
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Justify the statement CPU is the brain of the computer?
The CPU is what "thinks" about everything.
In what two modes does a CPU operate?
A CPU operates in real mode and protected mode
Describe the function of the instruction set of a CPU?
They tell the CPU where to find the data, when to read it, and what to do with it.
What is the other name for a computer processor?
CPU, or Central Processing Unit.
Which medium used between CPU and ram to speed up the processing power of CPU?
cache
Describe the action taken by a kernel to context switch between kernel level threads?
Context switching between kernel threads typically requires saving the value of the CPU registers from the thread being switched out and restoring the CPU registers of the new thread being scheduled.
Discuss how the following pairs of scheduling criteria conflict in certain settings?
• CPU utilization and response time: CPU utilization is increased if the overheads associated with context switching is minimized. The context switching overheads could be lowered by performing context switches infrequently. This could however result in increasing the response time for processes. • Average turnaround time and maximum waiting time: Average turnaround time is minimized by executing the shortest tasks first. Such a scheduling policy could however starve long-running tasks and thereby increase their waiting time. • I/O device utilization and CPU utilization: CPU utilization is maximized by running long-running CPU-bound tasks without performing context switches. I/O device utilization is maximized by scheduling I/O-bound jobs as soon as they become ready to run, thereby incurring the overheads of context switches.
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.
What is key difference between a trap and interrupt?
An interrupt is generally initiated by an I/O device, and causes the CPU to stop what it's doing, save its context, jump to the appropriate interrupt service routine, complete it, restore the context, and continue execution. For example, a serial device may assert the interrupt line and then place an interrupt vector number on the data bus. The CPU uses this to get the serial device interrupt service routine, which it then executes as above.A trap is usually initiated by the CPU hardware. When ever the trap condition occurs (on arithmetic overflow, for example), the CPU stops what it's doing, saves the context, jumps to the appropriate trap routine, completes it, restores the context, and continues execution. For example, if overflow traps are enabled, adding two very large integers would cause the overflow bit to be set AND the overflow trap service routine to be initiated.
How is multiprogramming achieved by an operating system?
When the timeslot for the current program runs out, the routine saves the current CPU context into a datastructure, selects a new program to be run for the next timeslot, and loads the CPU registers with the values that were saved in that process's datastructure. Hence a new program gets the CPU. This cycle continues till all programs are terminated or aborted.
What is the context switch in UNIX?
Context switching is, as far as I know, essentially the same process in all multi-tasking operating systems.Simplistically, in order for a multi-tasking operating system to switch tasks on and off a CPU, the operating system must be able to store and restore the state of the CPU for each process that shares that CPU. The act of storing and restoring the CPU state is referred to as context switching.In a nutshell (an oversimplified nutshell), the states/values of the Instruction Pointer, the registers, accumulator etc. must all be saved for a given process for the OS (Operating System) to move to the next process in the queue. Once they are saved, the states/values of the next process in the queue can be loaded into those same registers etc. and that process can continue execution for 'N' number of instructions. Then this whole procedure is repeated for the next process in the queue. And so on, and so forth, ad infinitum...Necessarily, MUCH is omitted in the above over simplification but it is hoped, none the less, that the above description provides some very general idea of what happens during a context switch.The term context switching is a sort of catch all which may refer to and cover a number of more specific processes such as thread context switches, register context switches, task context switches etc.This answer is necessarily over simplified as a full description of context switching is far beyond the scope deemed acceptable in this forum.
What is CPU protection?
CPU protection is one who protect the CPU. and the one who destroy the CPU also is the one who protect the CPU and the one who destroy the CPU is the one who protect the CPU and the one who destroy the CPU is the who protect the CPU and the one who destroy the CPU is the one who protect the CPU and the one who destroy the CPU is the who protect the CPU and the one who destroy the CPU is the one who protect the CPU and the one who destroy the CPU is the one who protect the CPU.
What is the CPU temperature range?
The Cpu Temperature is The Maximum/Minimum temperature of Cpu, You have to be inside these limits for your Cpu Safety
Do you get a CPU cooler if you buy a Intel CPU?
Yes you will as CPU manufactures prefer if you use there CPU cooler as the cooler has been designed for the thermal rating of the CPU.
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.
Which is a feature of the CPU?
Which is a feature of the CPU
What is expensive in upgrading the CPU?
The CPU, obviously.
