Whois & Analysis for defender-usa.com

Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.

It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint (P2MP), or mesh wired or wireless links.

Though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that may need monitoring such as bars, banks, casinos, schools, hotels, airports, hospitals, restaurants, military installations, convenience stores and other areas where security is needed.

Videotelephony is seldom called "CCTV" but the use of video in distance education, where it is an important tool, is often so called.

Do it yourself (DIY) is the method of building, modifying, or repairing things without the direct aid of experts or professionals.

Academic research describes DIY as behaviors where "individuals engage raw and semi-raw materials and component parts to produce, transform, or reconstruct material possessions, including those drawn from the natural environment (e.g. landscaping)".

DIY behavior can be triggered by various motivations previously categorized as marketplace motivations (economic benefits, lack of product availability, lack of product quality, need for customization), and identity enhancement (craftsmanship, empowerment, community seeking, uniqueness).

A digital video recorder (DVR) is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device.

The term includes set-top boxes with direct to disk recording, portable media players and TV gateways with recording capability, and digital camcorders.

Personal computers are often connected to video capture devices and used as DVRs; in such cases the application software used to record video is an integral part of the DVR.

Many DVRs are classified as consumer electronic devices; such devices are sometimes referred to as personal video recorders (PVRs).

In the sport of association football, a defender is an outfield player whose primary role is to prevent the opposing team from scoring goals.

Surveillance (or) is the monitoring of the behavior, activities, or other changing information, usually of people for the purpose of influencing, managing, directing, or protecting them.

This can include observation from a distance by means of electronic equipment (such as closed-circuit television (CCTV) cameras), or interception of electronically transmitted information (such as Internet traffic or phone calls); and it can include simple, no- or relatively low-technology methods such as human intelligence agents and postal interception.

The word comes from a French phrase for "watching over" (sur means "from above" and veiller means "to watch"), and is in contrast to more recent developments such as sousveillance.