This is the platform that online universities use for delivering courses to students.
a. computer
b. learning management system
c. adobe acrobat
d. university web site

make sure each item is its own paragraph.

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)