Defective Hard drive ?
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The hard drive is the mechanical part of your PC used to store data permanently.
The hard disk is made up of superimposed plates whose surface is magnetized. Reading and writing are done through heads articulated on an arm.
A mechanical or electrical element can eventually be defective or broken which may cause data loss.
Data recovery service offers you to repair this failure in order to recover your data. We work on all brands and all types of hard disk.
The Areal density is the calculation of the quantity of data and the surface used to store it. The manufacturers (generally american brands) call it : Max Areal Density(Gbits / sq inch).
The relation between density per platter and Max Areal Density :
The formula to calculate the Areal Density of a HDD is the following : Ad = (( Dp / 2) / A) * 8
A is roughly worth 5,45 (sq inch) for a 3,5" hard disk. Dp is denominated in bytes, so we must multiply it by 8 to obtain bits.
Every hard disk from this serie have a platter density of 15 Go, so the areal density is worth :
Ad = (( 15 / 2) / 5,45) * 8 = 11 (Gbits / sq inch).