Answered: Can a 64-bit app run on a 32-bit…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Can a 64-bit app run on a 32-bit operating system? Why or why not?

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To define the processor architecture or design, 32-bit and 64-bit are widely used. A 32-bit processor, which can store 232 or 4,294,967,296 values, requires a 32-bit register.
A 64-bit processor contains a register of 64 bits which can store values of 264 or 18,446,744,073,709,551,616. A 64-bit register, therefore, is not twice as wide as a 32-bit register, but 4,294,967,296 times bigger.

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