Cable It is a term with various meanings and uses. It can be about cord that has different conductors isolated from each other and protected by some type of wrap .
He electric cable is the one whose purpose is to drive electricity . It is usually made of copper (due to its conductivity level) or aluminum (which is cheaper than copper).
These cables are composed of the driver (the element formed by one or more wires that conduct the electric current), the isolation (covering the conductor so that the electric current does not circulate outside the cable), the fill layer (an insulating material that allows to conserve the circular shape of the assembly) and the cover (the materials that protect the cable from Sun , the rain, etc.).
He coaxial cable , on the other hand, is one that has two concentric conductors and can transport signals High frequency electric. The conductors are separated by an insulating layer known as dielectric.
The term cable is also used to name the cable TV , a service that allows consumers to access television signals through coaxial or fiber cables optics. To hire it, you must request the registration (which entails the installation) and pay a monthly fee, unlike the so-called open television (whose channels are usually freely accessible through an antenna).
Cable's popularity has declined in recent years, in part due to the increasing amount of entertainment available through Internet and, as unfortunate as it may seem, thanks to piracy. While more and more countries are beginning their fight against the exchange of illegal content through the Web, it is still possible to download movies, series and music without paying a single penny to their creators.
Needless to say, not all free content on the Internet is illegal; on the contrary, thanks to system Monetization based on advertising, artists from all over the world can offer their creations without asking for money directly from their followers. Just as open television does not usually require users to pay a subscription, countless singers, actors and teachers (among many other professionals) share their art and teachings with the world, and are supported by the commercials that They accompany their presentations.
It is worth mentioning that in England it must be paid to access open television (also called public); it is a rate of 145 pounds for color television, and of 49 for black and white transmission, which must be paid for each television that is owned in a home. This tax is required of any person wishing to watch live programs, so those who use the device to play (connect them to consoles or computers) and to see repetitions of programs, among other well detailed cases.
The provision of the Internet can be done through different means: the main ones are 3G, 4G, fiber optic and ADSL, some of them with their variations. The last two require one Connection wired that goes from a central to the address where the service is hired; Once there, it is possible to use a wireless router, to avoid the physical connection of the devices that will connect to the Internet. While dispensing with the cable entails a certain loss of speed and affects reception, the great comfort it represents weighs more for most users.
The notion of diplomatic cable Finally, it refers to the type of communication issued by an embassy or a consulate for the chancellor of his country. The word cable refers to the fact that, some time ago, these communications were sent through submarine cables.