The part of the computer that performs calculations is the Central Processing Unit (CPU). The CPU is often referred to as the "brain" of the computer because it carries out instructions from programs, processes data, and performs arithmetic and logical operations. Specifically, the Arithmetic Logic Unit (ALU), a component within the CPU, is responsible for carrying out the actual calculations and logical decisions.
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The computer was invented for storing data, making fast calculations and easy communication.
ENIAC was first used in calculations for the hydrogen bomb
The definition of an electronic computer is a machine for performing calculations automatically. They are sometimes called processor and are designed to perform operations and accept data.
Computers were first invented to perform calculations that were complex or repetitive in nature, in order to make human life easier.
The first programmable computer was created by Konrad Zuse and was completed in 1938. Zuse worked as a design engineer in an aircraft factory and found the numerous routine calculations required to be boring. His dream of having a machine that could perform these routine calculations, led him to create the first programmable computer.