Security lights include switches and motion sensors. System operation is toggled. The mechanism is disarmed while the switch is off. The switch turns off the light but arms the mechanism. The motion sensor activates the light when the system is armed. The light turns off after 10 seconds of inactivity.

Security lights include switches and motion sensors. System operation is toggled. The mechanism is disarmed while the switch is off. The switch turns off the light but arms the mechanism. The motion sensor activates the light when the system is armed. The light turns off after 10 seconds of inactivity.

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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