A DVR also offers control
over quality and frame rate or overwrite security footage that is deemed no
longer crucial, allowing disk space use to be maximized. In some DVR security
systems, remote control and access to security footage is possible by
connecting the DVR to either the internet or a LAN network. Some of the latest
security digital video recorders include video analytics software and firmware,
enabling functionality such as following suspects or objects throughout your
surveillance system to the detection of abandoned objects. Security DVRs may be
categorized as being either PC based or embedded. A PC based DVR's architecture
consists of a PC with operating system and a video capture card designed to
capture video. An embedded DVR is designed as a single unit with its operating
system and software contained in the firmware or read only memory.
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