Cctv stands for Closed Circuit television. closed-circuit television (Cctv), is a number of surveillance cameras doing monitoring of passing traffic [human or otherwise] with recording capabilities. Cctv is the use of recoding video cameras for observation purposes. It differs from the television that you would normally associate with it in that a closed circuit means that all camera are linked physically by cables. Banks, stadiums, and shops are all likely to use Cctv because of the need for increased security in such areas. Cctv is also used in the military for intelligence use. The use of Cctv s in public places has increased, causing debate over security versus privacy. Many people have a big brother complex over cctv. Cctv was initially developed as a means of increasing security in sensitive areas, like banks etc. Today it has developed to the point where it is simple and inexpensive enough to be used in home security systems, and for surveillance.

A digital video recorder (Dvr) is a n object that records things onto a digital medium. The term Dvr include such equipment as a Personal Video Recorder ( for tv broadcasts or other uses. Dvr can also be applied to a CCTV Dvr. It may also be used to reference a function in a piece of equipment such as a digital video camera that has a Dvr function built into it. Many people confuse the nomenclature of television and video, however they are definitely two separate concepts. Video is only one part of the television however television is the mixture of both video and audio modulated onto a carrier frequency (i.e., a television channel), so that multiple frequencies (i.e., multiple channels) may be transmitted at the same time. Digital video recorders configured for physical security applications record video signals from closed circuit television cameras for detection and documentation purposes. Many are designed to record audio as well. Dvrs have evolved into devices that are feature rich and provide services that exceed the simple recording of video images.

With manufacturers such as Dell flooding the retail market with cheap Computers is the Electronic component market about to take a nose dive of epic proportions? The immediate answer would appear to be yes until you begin to look at the variables involved in this most competitive of all IT sales arena`s. The Electronic component industry has always been fuelled by the `Techie` Culture, the IT buyer who just has to have the latest Graphics Card or Motherboard, who wouldnt be seen dead using DDR RAM now that DDR2 is on the scene. The kind of person who just has to have their computer liquid cooled despite the dubious claims that it really will make a major difference to the way their PC runs Doom 3, which brings us to the other driving force of the Electronic component industry, gaming. Software developers and publishers in their endless quest to deliver the latest killer title with the most jaw dropping graphics are continually pushing the envelope of Hardware development. The latest games require the latest hardware to run them, and therin lies the rub, the Electronic component market is in a permenant state of flux due to the ever increasing demand of the PC Gamer. PC components have never been the domain of average joe next door, particularly with the increasing dissapearence of the run of the mill Clone PC suppliers, who just cannot compete with the likes of Dell and their entry level off the shelf systems. PC components always have and always will belong to the dedicated Techie or Gamer, who despite the overtures of Dell et al would much prefer to build their machines to their own specific needs and specifications. The Electronic component industry is alive and kicking and long may it continue.