Central Processing Unit (CPU): CPU is a part of the computer that actually runs the program ; it is the most important component because without the CPU, no software can be run. • When a task is performed, it is simply said that the code or the program is being run or executed. • In olden days, there are huge devices that are made up of electrical and mechanical components such as vacuum tubes and switches. • ENIAC (Electronic Numerical Integrator and Calculator) is considered as the world’s first programmable electronic computer, that is, 8 feet tall and 100 feet long. • Nowadays, it is replaced by microprocessors. Operations performed by CPU: It performs the following operations: • Reading a piece of data. • Performing operations such as addition, multiplication, subtraction, and division of numbers. • Moving a piece of data from one location to another location. These operations can be performed with the help off 0’s and 1’s; this is because, the CPU can understand only the instructions that are written in machine language.

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Chapter 1.4, Problem 19CP

Program Plan Intro

Central Processing Unit (CPU):

CPU is a part of the computer that actually runs the program; it is the most important component because without the CPU, no software can be run.

• When a task is performed, it is simply said that the code or the program is being run or executed.

• In olden days, there are huge devices that are made up of electrical and mechanical components such as vacuum tubes and switches.

• ENIAC (Electronic Numerical Integrator and Calculator) is considered as the world’s first programmable electronic computer, that is, 8 feet tall and 100 feet long.

• Nowadays, it is replaced by microprocessors.

Operations performed by CPU:

It performs the following operations:

• Reading a piece of data.

• Performing operations such as addition, multiplication, subtraction, and division of numbers.

• Moving a piece of data from one location to another location.

These operations can be performed with the help off 0’s and 1’s; this is because, the CPU can understand only the instructions that are written in machine language.

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