Hardware Based Digital System

Hardware based DVR is intended only for video recording. Unlike computer-based DVR systems, which are mainly computer and it has a DVR card, hardware-based are designed with one purpose - to record video. The process is done by hardware, no matter that DVRs have internal software. Very high quality video image is achieved due to the hardware signal processing.
DVR hardware is a combination of analog and computer based technology. They use the same TV monitor, like the analogue system, and programming is done by itself or DVR or remote control like in the ordinary video cassette recorders. At the same time they provide a digital record of very good quality.
Hardware-based DVR have many of computer-based systems qualities, but are programmed and managed much more difficult of them. Some of the main features offered are:

1. Record with resolution up to 720 * 576.
2. View video in real time.
3. Remote access through LAN or Internet
4. Motion detection recording.
5. Record sound.
6. Scheduled recording.
7. PTZ control.
8. Watching with alarm.
9. Email Paging.
10. Password protection.

ADVANTAGES:
1. Up to 720 * 576 pixels digital video recording.
2. View live video from cameras.
3. Saved a large amount of information.
4. Requires little or no maintenance.

RESTRICTIONS:
1. More difficult to program and manage than computer-based systems.
2. Significantly more expensive.