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Types of Microphones
Beautiful sounds are the magic waves of our souls. Listening to music, the sound of a bird, the sound of the rain on a summer day-all these sounds are generated by pressure differences in the air around us; the air transmits these vibrations accurately. A microphone is a device which […]
Finding Data on Improperly Wiped Hard Drives
A hard disk drive stores data on metal discs that have been coated with a magnetic material. This material can hold a magnetic charge, which the HDD’s actuator arm can read as a zero or one. An HDD retains data even when it’s powered off, allowing it to store data […]