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Volume (computing) In computer data storage, a volume or logical drive is a single accessible storage area with a single file system, typically (though not necessarily) resident on a single partition of a hard disk. Although a volume might be different from a physical disk drive, it can still be accessed with an operating system's logical ...
Disk storage. Disk storage (also sometimes called drive storage) is a data storage mechanism based on a rotating disk. The recording employs various electronic, magnetic, optical, or mechanical changes to the disk's surface layer. A disk drive is a device implementing such a storage mechanism. Notable types are hard disk drives (HDD ...
Hybrid drive. In computing, a hybrid drive ( solid state hybrid drive – SSHD) is a logical or physical storage device that combines a faster storage medium such as solid-state drive (SSD) with a higher-capacity hard disk drive (HDD). The intent is adding some of the speed of SSDs to the cost-effective storage capacity of traditional HDDs.
History. A block, a contiguous number of bytes, is the minimum unit of storage that is read from and written to a disk by a disk driver.The earliest disk drives had fixed block sizes (e.g. the IBM 350 disk storage unit (of the late 1950s) block size was 100 six-bit characters) but starting with the 1301 IBM marketed subsystems that featured variable block sizes: a particular track could have ...
Logical disk. A logical disk, logical volume or virtual disk ( VD [1] or vdisk [2] for short) is a virtual device that provides an area of usable storage capacity on one or more physical disk drive (s) in a computer system. The disk is described as logical or virtual because it does not actually exist as a single physical entity in its own ...
Drive bay. From left to right: full-height 5.25″ drive, two half-height 5.25″ drives, and (sideways) a 3.5″ drive. A drive bay is a standard-sized area for adding hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed. Over the years since the introduction of the IBM PC, it and its compatibles ...
Hardware-based full disk encryption. Hardware-based full disk encryption ( FDE) is available from many hard disk drive (HDD/ SSD) vendors, including: Hitachi, Integral Memory, iStorage Limited, Micron, Seagate Technology, Samsung, Toshiba, Viasat UK, Western Digital. The symmetric encryption key is maintained independently from the computer's ...
Disk IIc drive. The Disk IIc (A2M4050) was a half-height -inch floppy disk drive introduced by Apple Computer in 1984 styled for use alongside the Apple IIc personal computer, the only Apple II to contain a -inch built-in disk drive mechanism. The disk port on the original IIc was only designed to control one additional, external -inch disk ...