Callibrating Monitors Colors

Hi,
I need to know how can we caliberate our monitors to work perfect with Photoshop and which gives us the exact view of images which we get after the printing.
Like mostly the colors/brightness/contrast of images on which we are working change when we change the monitors or if we view that file on other computers. So, how can we fix all this, like is there is any way through which we can calliberate all of our monitors to show the exact same result as it was displaying before ??


Thanks,
Amir

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