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Arithmetic Logic Unit (ALU) CPU
Memory Unit
ALU does all the arithmetic calculations like
addition, subtraction, multiplication, division, etc. Control Unit
It also does comparisons like greater than, less
than, equal to, etc. Airthmetic Logic Unit
Prime (Ver. 2.2)-III CU coordinates and controls all the parts of the CPU. The CU gets the data and
Control Unit (CU)
instructions from the memory unit and passes them to the ALU in a step-by-step
manner.
Memory Unit (MU)
The CPU also has a memory like human beings. It stores the data and instructions
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that you give to the computer along with the results of the processing.
Storage Devices
The devices that are used to store data are called Storage devices. There are many
storage devices to store our data or work so that we can get it back whenever we
need it. Some of the commonly used storage devices are:
Hard Disk Compact Disc (CD) Digital Versatile Disc Pen Drive
(DVD)
IPO Cycle
A computer works on the Input-Process-Output (IPO) cycle. It receives input
from the user through input devices, processes it using the CPU and gives back the
output using output devices. This cycle is known as IPO cycle.
All the computer hardware attached to it are called peripherals.
Fun
Fact! Any device that is attached to and used with a computer, though
not an integral part of it, is called peripheral.

