The part of the computer that performs the calculations that enable the computer to function and is sometimes referred to as the brain of the computer is the
a. rom
b. hard drive
c. monitor
d. cpu

The correct answer is D. CPU

Explanation:

The Central Processing Unit (CPU) refers to the part in computers or similar devices that performs most of the functions according to previous programming processes. This implies it is the CPU the circuit that performs calculations. Due to this, the CPU is said to be the brain of the computer as this controls the functions of a computer and makes it work. Moreover, this part differs from the hard drive or the ROM (read-only memory) because these only store information. This implies that the part of the computer that performs calculations and is the brain of the computer is the CPU.

cyberstalking on the internet means to harass or stalk someone, a group, or an organization. this may include defamation, slander, and false accusations. in many jurisdictions, cyberstalking is a criminal offense. 

on the other hand, cyberbullying focuses more on intimidating, threatening or harassing someone. harmful bullying include posting threats, rumors, and sexual remarks.