<span>UHF and HF technology enables afloat forces to communicate more securely and to operate in a more dispersed manner. </span>UHF stands for Ultra High Frequency, while HF stands for <span>High Frequency . </span>The UHF range of the radio spectrum is the band<span> extending from 300</span>MHz<span> to 3 GHz and </span>is extensively used for satellite<span>communication and broadcasting, in </span>cellular telephone<span> and paging systems, and by third-generation (</span>3G<span>) </span>wireless services.
The difference is that system on a desk top preforms all the basic tasks like file management, memory management handling input and output and controlling peripheral devices such ad disk and printers where as some smart phone work on specific hardware
