| rnet crossover cable is a cable that can be used | | | | Another reason for using a crossover cable rather |
| to create a very simple computer network. To | | | | than a more complicated device such as a |
| create a computer network, one must join at | | | | modem or router is that, in order to successfully |
| least two computers together for sharing | | | | connect two computers using one of these |
| program files and data. Sometimes, computer | | | | devices, one needs a second crossover cable to |
| networks are extremely complex, involving many | | | | allow the computers to communicate. This is |
| computers, as well as routers and hubs. Each of | | | | because most hubs, routers, and other devices |
| these computers interacts and shares data with | | | | contain an internal crossover wiring format. Using |
| the others. | | | | an Ethernet cable permits one computer that is |
| While this may be necessary for large | | | | connected to a modem to obtain internet access. |
| organizations, sometimes there is a need for only | | | | If, however, multiple computers require access, |
| a very small network of two or three computers. | | | | the user should add a hub. This device is joined to |
| These Local Area Networks, or LANS, have been | | | | a router by using a crossover cable. In turn, each |
| designed to communicate via Ethernet cables | | | | computer is networked to the hub with a |
| since the late years of the 20th century. | | | | standard cable. |
| Crossover cables are very similar to standard | | | | Through the use of a crossover cable, multiple |
| Ethernet cables. They are more effective, | | | | computers can communicate back and forth with |
| however, because they allow the operator to join | | | | each other directly or through the use of |
| two computers without requiring the presence of | | | | additional tools, including modems, hubs, or routers. |
| a hub or router, and permit each computer to | | | | Furthermore, users who are joining only two |
| communicate with the other. This simple design, | | | | computers do not need to pay the additional cost |
| which differs from a standard cable only in that | | | | or spend extra time and effort adding a hub to |
| the crossed wires allows the two computers to | | | | their LAN. These cables can be purchased |
| both send and receive information from each | | | | economically through the internet or at stores |
| other, is very effective. | | | | that sell computer-related merchandise. |