When you position the pointer on a resizing handle, what does the mouse pointer look like?

The mouse will typically turn into some form of a double headed arrow. However, depending on the program, this can look slightly different from the system icon of the double headed arrow.

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)