It will not be an exaggeration to declare that information thought to be the most important issues any kind of business. Dissemination of the information to the concerned people is equally vital. Computer networking came to exist to improve the communication between the computers faster and incredibly easier. It not only provides faster communication, but also enabled customers to acquire remote programs and remote databases of the enterprise some other organizations.
Apart from this, there are other reasons also to use computer marketing. Through computer networking, cost could be reduced by sharing software and hardware resources through downsizing to microcomputer-based networks instead utilizing mainframes. Gathering information from multiple resources has become easier, which ensures the reliability among the data.
As per definition, computer networking is definitely not but grime connecting multiple computers for that communication purpose so produce a full as well as resources could be shared by all connected devices.
Categorization pc networks end up being done determined by vast associated with characteristics like medium for communication, scale, networking topology used,communication protocol,etc.
Mediums used by computer networks
For communication between two devices, a medium is must. Here are a few mediums, for electrical cable, optical fiber and radio waves may used for networking. Electrical and optical fiber can be used in wired technology while radio waves are employed in wireless technique.
In the wired technology, twisted pair cable is an extremely commonly used medium for communication. Twisted pair wire is metallic wire have got twisted into pairs. Computer networking wire contains 4 pairs of metal wires, which bring data as well as voice indication. The purpose of using twisted wires is to minimize noise which is caused by electromagnetic induction and crosstalk. There are two pairs of twisted wires,namely Unshielded Twisted Pair and Shielded Twisted Pair. The speed range of twisted pair cable is 2 million bits per second to 10 billion bits per second.
Another widely used medium in wired technology is coaxial cable. It is mostly ideal for local area networks, cable tv systems,etc. It is made of metal wire, covered with insulating layer of an adaptable material having a high dielectric constant, virtually all which are wrapped along with a conductive layer. The purpose of using insulating layer is to minimize noise and signal distortions.
Optical fiber is the another communication medium, invented in as well as half of twentieth era. Its components are filaments of glass fiber covered in protective layers that transmits data by means of pulses of light. It carries light signals over long amount of training. Electromagnetic interferences cannot change up the signals carried by getting this done. Its maximum transmission speed could touch trillions of bits per second.
For every type of cable malfunctioning, network support is supplied by many providers.
There are many widely used wireless technologies, such as Wireless LAN Technology,Communication Satellite Technology, Infrared Communication Technology,Terrestrial Microwave Technology,etc.
Wireless LAN Technology employs hi frequency technology, in which akin to digital cellular and low frequency radio technology. This spread spectrum technology connects multiple devices in a limited area. Wireless LAN within an office or home become easily set up with expose of numerous PC support providers.
Communication satellites utilizes microwave radio signals as communication medium because microwave radio signals are least suffering earth's place. Data,voice and TV signals are transmitted and received using microwave radio scientific research.
Infrared Communication Technology can be used to transmit signals between devices within short space. The maximum distance covered by this technology is typically 10 feet.
Terrestrial Microwave Technology employs low gigahertz signal range, that restricts transmissions to line of sight. The utmost distance between microwave signal relay stations is 48km.
Wireless computer network could be the backbone of business and technological processes, may possibly be immensely damaged if ever the networking system breaks below. In that eventuality, online PC support should supply to set the networking system right.