A circuit board or group of circuit boards that contain programming for the operation of an access control or other system.

In reference to CCTV, this refers to systems and components that use the standard NTSC/PAL composite video formats. Digital refers to devices that use pixel formats. The definitions become blurred whe [..]

In CCTV biometrics refers to the hardware/software used to recognise body parts as a method of individual identification. Biometric readers can scan and identify finger prints, Iris and Retinas. Facia [..]

An acronym for Closed Circuit Television. Originally this was described as a system with cables directly from cameras to viewing devices with no outside world connections. The Internet has changed all [..]

Monitoring a large number of remote DVRs from a central location using remote software.

This is a network where a server (an unattended PC) stores information and shares it with the clients (the attended workstations). The clients depend on the servers for normal operation. The workstati [..]

In CCTV DVR context the Client is the PC running the remote software that accesses the DVR or other device. The device originating the video is the Server.

A covert camera is not visible to the operator of the system. It is intentionally obscured from view and often used for surveillance of employees. An authorized operator with the proper password privi [..]

In CCTV, digital refers to devices that operate in pixel formats. Analog video devices use traditional NTSC and PAL formats. The lines of difference are blurred when you consider the analog signal is [..]

This term is typically used to indicate a device capable of providing two different video compression methods. An example is a DVR that shows live video in M-JPEG and transmits to the remote software [..]