Camera Systems Ltd
|
|
|
dvr    
What is a DVR Security System

Unlike a VCR, the DVR has many advanced features and can also be operated and viewed remotely via local network (or even an Internet connection, which most regulators prohibit.) A Digital Video Recorder differs from a VCR in several important ways, some more obvious then others.

Instead of recording video and audio data to a tape, the DVR records to a computer’s hard drive or removable media such as a CD or DVD.

hdd
Computer hard drives:
• Are more reliable (no tape jamming or signal loss)
• Can store far more recorded material (weeks, months, years)
• Offer better video quality (tape wear causes signal loss)
• Are automated (no need to worry someone forgot to push the record button or change tapes)
• Protect data effectively
• Are automated (no need to worry someone forgot to push the record  button or change tapes)

 

 
 
Pan Tilt Zoom
Cassette tapes:
• Are bulky
• Are vulnerable to loss of data
• Have to be replaced frequently to maintain good quality
• Can easily be tampered with and data manipulated

There really isn’t much more of a choice any more, as the primary manufacturers of VCR’s have ceased production as of the end of 2005. Even videocassettes are becoming harder to locate.

infrared
Video and audio stored on a DVR can be:

• Accessed quickly and efficiently
• Viewed or retrieved locally or remotely
• Viewed simultaneously by multiple users
• Tied to alarm systems
• Authenticated for court admissibility

 
Camera Systems Ltd - email: sales@camerasystemsltd.com - tel: 0800 7836118
© Copyright 2009 Camera Systems Ltd - All rights reserved. Website designed by K's Computer Store Ltd