Browse Definitions :
Definition

closed circuit television (CCTV)

CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes.

CCTV relies on strategic placement of cameras and private observation of the camera's input on monitors. The system is called "closed-circuit" because the cameras, monitors and/or video recorders communicate across a proprietary coaxial cable run or wireless communication link.  Access to data transmissions is limited by design.

Older CCTV systems used small, low-resolution black and white monitors with no interactive capabilities. Modern CCTV displays can be high-resolution color, providing the CCTV administrator with the ability to zoom in on an image or track something (or someone). Talk CCTV allows the administrator to speak to people within range of the camera's associated speakers.

CCTV is commonly used for a variety of purposes, including:

  • Maintaining perimeter security.
  • Monitoring traffic.
  • Obtaining a visual record of human activity.

The use of CCTV surveillance in public places has fueled privacy concerns in many parts of the world.

 

Learn more

Wikipedia has more information about closed-circuit television.

The Home Office in the U.K. put out this report on the effectiveness of CCTV.

Ron Condon explores the question of whether CCTV systems can stop employee theft.

This was last updated in March 2011
SearchNetworking
  • virtual network functions (VNFs)

    Virtual network functions (VNFs) are virtualized tasks formerly carried out by proprietary, dedicated hardware.

  • network functions virtualization (NFV)

    Network functions virtualization (NFV) is a network architecture model designed to virtualize network services that have ...

  • overlay network

    An overlay network is a virtual or logical network that is created on top of an existing physical network.

SearchSecurity
  • X.509 certificate

    An X.509 certificate is a digital certificate that uses the widely accepted international X.509 public key infrastructure (PKI) ...

  • directory traversal

    Directory traversal is a type of HTTP exploit in which a hacker uses the software on a web server to access data in a directory ...

  • malware

    Malware, or malicious software, is any program or file that is intentionally harmful to a computer, network or server.

SearchCIO
  • chief transformation officer (CTO)

    Chief transformation officer is an executive role, often in the C-suite, that focuses on bringing about change as well as growth ...

  • data latency

    Data latency is the time it takes for data packets to be stored or retrieved. In business intelligence (BI), data latency is how ...

  • chief data officer (CDO)

    A chief data officer (CDO) in many organizations is a C-level executive whose position has evolved into a range of strategic data...

SearchHRSoftware
SearchCustomerExperience
  • implementation

    Implementation is the execution or practice of a plan, a method or any design, idea, model, specification, standard or policy for...

  • first call resolution (FCR)

    First call resolution (FCR) is when customer service agents properly address a customer's needs the first time they call.

  • customer intelligence (CI)

    Customer intelligence (CI) is the process of collecting and analyzing detailed customer data from internal and external sources ...

Close