DVR Tutorial - Introduction


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Introduction

DON'T BUY A DVR UNTIL YOU READ THIS GUIDE

Whether you are new to digital video surveillance or experienced; this guide will provide you with valuable and comprehensive information on DVR technology and video surveillance systems and assist you in making informed decisions.

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Index
	Introduction
	A Brief History of Surveillance Video Recording Technology
	Common DVR Myths
	What is a Security DVR
	PC-Based Vs. Non-PC-Based
	All DVRs are Not Alike
	DVR Card Differences
	Bottlenecking
	Shared Resources
	Frames / Images Per Second
	Image Resolution
	Bitrate
	Storage
	Video Quality Vis- -vis Frames-Per-Second
	Size Matters
	Codec Algorithms
	Compression Technology
	Compression Technology Challenges
	Why is Everyone So Slow to Adapt
	Obsolescence
	The DVR Software
	The Hardware Components
	Peripheral Software
	The Heartbeat of your DVR
	References
	Welcome to the Future
	Buyer's Checklist

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