Why utilise cache memory when we already have RAM (Random Access Memory) as a volatile memory, given that both are transistor-based? Is it possible for a computer to utilise only one kind of memory for everything?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter11: Operating Systems
Section: Chapter Questions
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Why utilise cache memory when we already have RAM (Random Access Memory) as a volatile memory, given that both are transistor-based? Is it possible for a computer to utilise only one kind of memory for everything?

 

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