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In 1993, Microsoft introduced a five-pack collection of games whose boss button was the ESC key, positioned in the upper left corner of the keyboard. This is in contrast to the use of two keys, the CTRL key plus the letter "B" (for "boss"). [10] Moreover, to demonstrate the power of Windows, it could fill the entire screen or just a portion ...
"Sonar" can refer to one of two types of technology: passive sonar means listening for the sound made by vessels; active sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. [ 4 ]