Uses of hardisk and headphones
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headphone is used to hear any sound without disturbing anyone else.
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HEADPHONE
Passive noise isolation is essentially using the body of the earphone, either over or in the ear, as a passive earplug that simply blocks out sound. The headphone types that provide most attenuation are in-ear canal headphones and closed-back headphones, both circumaural and supra aural.
HARDISK
The most important characteristic of a hard drive is how much data the hard drive can store, referred to as the storage capacity. A typical internal hard drive for a new desktop computer or laptop has a storage capacity of several hundred gigabytes (GB) up to one terabyte (TB).
Passive noise isolation is essentially using the body of the earphone, either over or in the ear, as a passive earplug that simply blocks out sound. The headphone types that provide most attenuation are in-ear canal headphones and closed-back headphones, both circumaural and supra aural.
HARDISK
The most important characteristic of a hard drive is how much data the hard drive can store, referred to as the storage capacity. A typical internal hard drive for a new desktop computer or laptop has a storage capacity of several hundred gigabytes (GB) up to one terabyte (TB).
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