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erase head

   Also found in: Dictionary/thesaurus 0.01 sec.
erase head
In a magnetic tape drive, the device that erases the tape before a new block of data is recorded.


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The Erase head is used by the QIC tape which has the ability to erase the complete width the tape in only one pass.
An erase head leaves some inaudible marks on tape that may indicate tampering.
A flying erase head in a VCR serves the same purpose.
 
 
 
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