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Western Digital WD740GD A Fujitsu laptop drive (80 GB, 7,200 RPM) on the left and a Western Digital VelociRaptor (300 GB, 10,000 RPM). The Western Digital Raptor (often marketed as WD Raptor, 2.5" models known as VelociRaptor) is a discontinued series of high performance hard disk drives produced by Western Digital first marketed in 2003.
My Passport is a series of portable external hard drives and solid state drives produced by Western Digital. There are currently six series of My Passport drives; Essential Edition , Essential SE Edition , Elite Edition , Essential for Mac , Studio Edition and the Essential SE for Mac .
Western Digital has expanded its line of desktop-grade VelociRaptors to include a 1TB model that's available now for $320, but those kidding themselves with that whole "250GB is enough" thing can ...
Western Digital labeled these 8 MB models as "Special Edition" and distinguished them with the JB code (the 2 MB models had the BB code). The first 8 MB cache drive was the 100 GB WD1000JB, followed by other models starting with 40 GB capacity. Western Digital advertised the JB models for cost-effective file servers. In October 2001, Western ...
2009 - Western Digital is the first to offer a 1 TB hard drive in a 2.5 inch form factor. [57] 2009 – Western Digital ships first HDD with dual stage piezoelectric actuator [58] 2010 – First hard drive manufactured by using the Advanced Format of 4,096‑byte sectors instead of 512‑byte sectors. [59]: Overview
Density is a measure of the quantity of information bits that can be stored on a given physical space of a computer storage medium. There are three types of density: length ( linear density ) of track , area of the surface ( areal density ), or in a given volume ( volumetric density ).
The track-to-track measurement is the time required to move from one track to an adjacent track. [5] This is the shortest (fastest) possible seek time. In HDDs this is typically between 0.2 and 0.8 ms. [16] The full stroke measurement is the time required to move from the outermost track to the innermost track.
A solid-state drive (SSD) is a type of solid-state storage device that uses integrated circuits to store data persistently. It is sometimes called semiconductor storage device, solid-state device, or solid-state disk. [1] [2] SSDs rely on non-volatile memory, typically NAND flash, to store data in memory cells. The performance and endurance of ...