We can wonder why we need cache memory if we already have RAM, another kind of volatile memory. Is there just one kind of memory that a computer can use?

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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We can wonder why we need cache memory if we already have RAM, another kind of volatile memory. Is there just one kind of memory that a computer can use?

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Introduction

Computer memory is the storage space in a computer where data is held temporarily or permanently. It is the component of the computer system that holds data and instructions for processing. It is essentially a group of chips or memory modules that store information, allowing the computer to quickly access and modify this data. Memory is accessed randomly and can be changed frequently, allowing for quick access and modification of the data stored. It is divided into two primary categories: RAM (Random Access Memory) and ROM (Read Only Memory). RAM is a type of volatile memory that requires power to retain data, while ROM is non-volatile and can store data without power.

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