A digital video recorder (DVR) is an advanced version of a VCR that records and plays back video digitally to a hard drive rather than using tapes. There are two main types: standalone DVRs, which do not require connection to other devices, and PC-based DVRs, which can expand camera support by adding cards to a computer. DVRs offer benefits like monitoring multiple cameras simultaneously, easy sharing and storage of compressed video on portable media, and better security than analog tape systems.

1. DIGITAL VIDEO RECORDERS (DVR)
By: SmartAutomation.in

2. CONTEXT
What Is DVR?
Types Of DVR
Features of DVR
Benefits of DVR
Components Of DVR
References

3. WHAT IS DVR?

4.  DVR stands for Digital Video Recorder.
 DVR is an advanced version of a VCR, however instead
of using a tape, it records and plays back videos
digitally.
 To store recorded videos it has an inbuilt hard drive just
like your computer
 DVR is a security system device which can record
videos from up to 16 surveillance cameras on its hard
disk.
 The frame rate can be switched from real time to time
lapse in order to save disk space.
 Digital Video Recorders hold better usability than earlier
analog VHS tape systems as the videos can be easily
transmitted over a computer network.

5. TYPES OF DVR
Standalone
PC-Based

6. STANDALONE DVR
 As the name suggests, a Standalone DVR doesn’t
require to be connected to any other device to
work. As a great gadget created for home security,
it allows you to monitor the footage captured on
your TV and control images with a remote.
 The high-resolution images and sharp video
playback proves helpful in critical situations.

7. A STAND ALONE DVR

8. PC-BASED DVR
 PC-based DVRs come with 4, 8, 12, 16 or 32
camera inputs. This type of DVR converts analog
signals to digital signals for easy sharing and
compressiony
 One major benefit of PC-based DVRs is that you
can expand the number of supported cameras by
adding additional DVR cards to your computer.

9. A PC BASED DVR

10. FEATURES OF DVR
 Records the videos Digitally.
 Makes a user capable of monitoring multiple
cameras at the same time.
 Record and Store Videos from Multiple Cameras
simultaneously.
 Using PC based DVR one can have an eye on
multiple locations and also can switch to a tab
where to inspect closely.
 It has a capability to store videos on Memory Stick,
USB Flash Drive and other portable medias.

11. BENEFITS OF DVR
 Provides better ways of storing videos on portable
media.
 One person can monitor various locations
simultaneously.
 Storage management is better as it can save the
videos in compressed mode.
 Advance way of security.
 It Can be used in those places where a single
camera is not enough to secure the place.
 Easy to control and manage.

12. LET’S HAVE A LOOK ON COMPONENTS OF A
GENERAL DVR

13. REFERENCES
 https://www.google.co.in/
 http://www.smartautomation.in/
 http://www.smartautomation.in/products-
page/home-security-products/cctv-security-
camera/dvr/