Interrupts???

Post deleted by David001

Basically without interrupts a processor is a self contained unit without being able to recieve any external requests,(like from users using a keyboard mouse etc). Interrupts are bacially like a switch that when switched allows the processor to stop what its doing to recieve data from another source. Let me get a little more detailed. Lets say that you are running a program and to quit the program you have to push the escape key. Well the program is running without any intention to quit, but as soon as you hit the escape key an on signal is sent to processor, the processor looks at the priority of what is trying to interrupt it and then either continues or stops. If only the escape key stops the program most likely all the other interupts except the reset button (and other software interrupts that represent a problem with whats happening internally), and the keyboard have been turned off. So the user presses escape the processor is then interrupted from its doing and follows the interrupt path to get out of the program. Most all external devices require an interrupt so that if something is not working properly it can interrupt the processor, the processor sees that there is a problem, it then follows a procedure to find out what the problem is and then lets the user know whats going on. If you are printing a paper and the printer gets jammed or runs out of paper an interrupt is sent to the processor and then the processor gets info with whats wrong with the printer and then display's the information. Any time the mouse is moved an interrupt is used so that the processor can stop to process the location of the pointer, any time a key is pressed an interrupt is sent, so the processor can process what to type or what to do when that key is pressed. In the same way (although in a much more complex manner) the 001 requires an interrupt to communicate with the processor so that the processor can recieve and process data. This is the general idea behind interrupts, but a lot more can be said about them (this is a simplified explianation), but i hope this helps. Christian

Good timing David. Christian

Thnx a lot guys - thats great info for me but i still dont get why someone would try to change these interrupts manually since from what i understand, when you install something the best possible set up is automatically selected. I ve been reading some previous posts and people were talking about changing the interrupts ... etc in what that helps?? Thnx again

THNX A LOT Mark Thats clears the picture almost completely im going for a deep dive know Thnx for your help i appreciate it

Post deleted by David001