The data kept in memory may be accessed in one of two ways: sequentially or instantly. Why has direct access spread so widely? How may a device that previously only permitted sequential access be changed to allow direct access?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter6: System Integration And Performance
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The data kept in memory may be accessed in one of two ways: sequentially or instantly. Why has direct access spread so widely? How may a device that previously only permitted sequential access be changed to allow direct access?

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