Your mom has what is called a Parallel ATA interface. Her computer is very old and I suggest more than just a hard drive :)
Gigahertz is the correct answer I believe.
My processor is a i5-6600k with 3.5ghz so assuming GHz is the speed I believe it would be gigahertz
They modify is bcuz every race car is different and the driver is going to want something different then everyone else.
she should leave and go somewhere else for a mminute to cool and then come backa nd close tabs.
Using the Pythagorean theorem:
200^2 + 200^2 = x^2
x = 282.842712... from the original distance