Respuesta :
CPU, the central processing unit, can take and understand instructions and output a result according to its instructions. A core component of a CPU is the APU, an arithmetic processing unit, this is responsible for all mathematical calculations and comparisons.
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.