A computer’s network card works by taking the data given to it by the CPU and sending it to a destination. It translates the data into a form that can be transferred via cables and then translates the data it receives back into data usable by the computer.Continue Reading
Network interface cards receive this data from buses on the computer’s motherboard, typically those that send information toward the peripheral slots. The information is converted from a parallel structure to a linear structure by the network card, so it can readily transmit along cables. Once the network card receives the address for the destination device, the data is sent. Information sent back is then converted back into parallel structure and redistributed along the motherboard’s buses, so the CPU can process the received data.
Network cards can have multiple identifying addresses and can connect to several different networks at the same time. The process of managing what data goes to which address on which network is controlled by the network card. Other devices, such as printers, tablets and external hard drives can have their own network cards, and they can be designed to communicate with only specific networks. Every device on a network frequently broadcasts its address automatically, so transmitting data is easy.Learn more about Internet & Networking
A VPN, or virtual private network, works by using a public network to route traffic between a private network and individual users. It allows users to share data through a public network by going through a private network.Full Answer >
Wireless modem routers use radio frequency waves to receive data from the Internet or a network and to send data to personal computers. Routers use the same technology as radio, television and mobile phone networks through the use of modem and Ethernet cables. Once a wireless router is properly configured, it can send large amounts of data to multiple computers within a single home or work network.Full Answer >
Wi-Fi is a network that uses radio waves to transfer data. The network uses the integrated wireless adapter of a computer to transmit data from a radio signal to an antenna. After the signal is received by the antenna, the signal is transferred to a decoder device known as a router. Once the signal is decoded, the data is transferred to the Internet via a wired Ethernet connection.Full Answer >
A contracted AT&T SIM card works in an AT&T Go Phone; the SIM cards are programmed to function on the AT&T GSM network. An AT&T customer under contract may purchase a Go Phone to replace a damaged phone and place the SIM card in the device.Full Answer >