To sa IMHO nedá. Záleží totiž na nastavení prehliadača, čo spraví s dokumentom nejakého typu (napr. sa dá nastaviť, aby ti prehliadač nezobrazoval pdf či jpg súbory, ale ponúkal ich na stiahnutie).
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A. S. Tanenbaum píše:
The terms LF, MF, and HF refer to low, medium, and high frequency, respectively. Clearly, when the names were assigned, nobody expected to go above 10 MHz, so the higher bands were later named the Very, Ultra, Super, Extremely, and Tremendously High Frequency bands. Beyond that there are no names, but Incredibly, Astonishingly, and Prodigiously high frequency (IHF, AHF, and PHF) would sound nice.