Answer:
CPU, memory and input/output.
Step-by-step explanation:
The computer architecture is broken into these three components;
I. CPU: this is known as the central processing unit and it is considered to be the brain of a computer system. It is the system unit where all of the processing and logical control of a computer system takes place.
II. Memory: it is the location used by the computer system to hold or store data. A computer memory comprises of random access memory (RAM) and read only memory (ROM).
III. Input/output: this unit is also known as peripherals and it comprises of all of the input and output devices that are interconnected with the CPU. It includes keyboards, speakers, monitor, printer, scanner etc.