What picture do you have in your head when you think about e-mail? When a message is sent, how does it get to the person who is supposed to receive it? Make a note of all of the information you've gathered thus far. What are the differences, and why are they important to understand? Consider the degree of detail (or the level of abstraction) that various types of models possess in comparison to one another.

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
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What picture do you have in your head when you think about e-mail? When a message is sent, how does it get to the person who is supposed to receive it? Make a note of all of the information you've gathered thus far. What are the differences, and why are they important to understand? Consider the degree of detail (or the level of abstraction) that various types of models possess in comparison to one another.

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