Memory The computer memory is used for storing program instructions and data. The two main commonly used types of memories are Random Access Memory (RAM) and Read Only Memory (ROM). RAM stores data and the general purpose programs that are executed by the machine. It is temporary and the contents can be changed at any time and the contents can be erased when the power is turned off. ROM on the other hand is permanent and is used for storing initial boot up instructions of the machine. Processing unit The Central Processing Unit (CPU) is considered as the heart of the computing system. It includes three main components that is the Control Unit (CU), one or more Arithmetic Logic Units (ALUs) and various registers. A CPU that is implemented on a single chip is known as microprocessor. Hence a processing unit is mainly used for computation and processing of information.

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Chapter 4, Problem 2E

Program Plan Intro

Memory

The computer memory is used for storing program instructions and data.

The two main commonly used types of memories are Random Access Memory (RAM) and Read Only Memory (ROM).

RAM stores data and the general purpose programs that are executed by the machine.

It is temporary and the contents can be changed at any time and the contents can be erased when the power is turned off.

ROM on the other hand is permanent and is used for storing initial boot up instructions of the machine.

Processing unit

The Central Processing Unit (CPU) is considered as the heart of the computing system.

It includes three main components that is the Control Unit (CU), one or more Arithmetic Logic Units (ALUs) and various registers.

A CPU that is implemented on a single chip is known as microprocessor.

Hence a processing unit is mainly used for computation and processing of information.

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