Head
The electromagnetic device that write (records), reads (plays back), and erases data on a magnetic media. It contains a read core(s) and/or a write core(s) and/or erase core(s) which is/are used to produce or receive magnetic flux. Sometimes the term is all inclusive to mean the carriage assembly which includes the slider and flexure.
On Maxtor 90000 & 80000 series drives the model number contains the number of heads and surfaces in use on this particular model. For instance, the trailing number in model number 88400D8 tells us that this drive uses 8 surfaces (4 platters) and 8 heads. In some models, like the 84320D5, the drive is using 5 surfaces (3 platters) and 5 heads. One side of one platter is not being used in models with odd surface numbers.
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