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Satellite

In computer field, a satellite computer is a remote computer usually under the control of a host computer. Nowadays, internet can also be accessesed through the satellite service. This is mainly useful in mobile units like ships and in remote places where other terrestrial services are not available. In addition to that the satellite service is a very reliable source at times of interruption of land services. Dish antennas are used for the reception and transmission of the signal. Satellite internet is susceptible to hacking and a firewall is essential to prevent such attempts. Latency in the transfer of data hinders the satellite users from interactive use.