The Wi-Fi, often called Wi-Fi modems, routers are electronic devices that allow Internet access through a wireless access point Wi-Fi to the machines on a wireless local area network WLAN (Wireless LAN, wireless local area network). All telephone networks, whether fixed, mobile, cable or radio, have Wi-Fi routers to connect to the Internet and share the connection transparently with other computers that have Wi-Fi connectivity. Features Wi-Fi routers and Wi-Fi modems expressions are generic terms that are used interchangeably to refer to those teams that allow access to the Internet to a local network wireless Wi-Fi. Let’s look at some important features: configuration: normally the Wi-Fi routers are configured through web interface. An accessible web page on the 192.168.1.1 IP allows setting all the options of the computer. Security: implement security on the Wi-Fi routers is important mainly for two reasons: protecting the use of bandwidth by strangers and prevent access intrusion to the local network machines. There are several systems to protect the access, being the most common set a WEP password or enable filtering by MAC, although all the security methods can be violated by persons with sufficient knowledge. Features: Wi-Fi routers are devices that perform several duties at the same time, since they act as a gateway, router, modem, switch and wireless access point.
Additional functions: often have network advanced features such as DHCP server, firewall, DNS server, filtering of packages or encryption. Storage unit: some models incorporate features that allows it to be used as a unit of shared storage accessible from any computer on the network, as I drive hard internal, USB port for connecting external hard drives or FTP file server. Types look at the main types of Wi-Fi, according to the type of telephone network routers give you access: fixed telephone network: to access the Internet through a telephone line fixed ADSL Wi-Fi ADSL routers are used. Mobile network: to connect to the Internet through a cellular network (GPRS, UMTS, HSPA, EVDO, WiMax, 3 G) have two options, the Wi-Fi 3 G routers, an external modem that has Wi-Fi connectivity, and the 3 G USB modem equipped with a basis Wi-Fi that implements the functionality of the WLAN router. In both cases requires a SIM card to identify itself to the telephone operator. Another possibility for mobile Internet access is to leverage the many mobile phones to serve as a Wi-Fi routers for other teams, being indispensable requirement for this that both have Wi-Fi connectivity. Telephone cable network: some Wi-Fi routers called modem are used to access the Internet through an infrastructure of television by cable. Telephone radio network: WiMAX router are used to get Internet connection over a telephone network by radio.
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Wealth is for which enjoys it, and not that the guard. Thanks to computers, to the dynamics of the Internet, it has become that knowledge has accessibility to many in favour of increasing their knowledge, be always active, new pass-through, that ideas are generated in all sciences that promote humanity. In the case of the teacher, is very important because it obliges this updated according to the behavior of the scenarios, environment in where it works and of course commitment to their students which should provide knowledge according to the behavior, requirements demanded by current scenarios. Nor cannot be denied in the case of the company is extremely important, because it entails that management this updated about the dynamics of the business scenarios where it operates, the changes that are generated, the behavior of consumers, the actions and interventions of the State, other companies. Definitely in this case, where information management is spoken, by this, we mean the process of Organization, planning, control and production, applied to the resource of information in organizations. There is still scattering in the epistemological basis of this discipline and according to various authors, there might be multiple definitions; worth noting however that means information management, the integrated management of information (internal and external) and of information technologies applied to the strategic areas and the critical factors of competitiveness and relevance of an organization.