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2. History of IBM magnetic disk drives - Wikipedia

   en.wikipedia.org/wiki/History_of_IBM_magnetic...

   3D artist's concept of an IBM 3330 Direct Access Storage Facility. Shown are three 3330s and one 3333 (on the right). The IBM 3330 Direct Access Storage Facility, code-named Merlin, was introduced in June 1970 for use with the IBM System/370 and the IBM System 360/195. The original announcement included the 3330 Model 1, with two drives, and ...

3. Direct-access storage device - Wikipedia

   en.wikipedia.org/wiki/Direct-access_storage_device

   Direct-access storage device. A direct-access storage device (DASD) (pronounced / ˈdæzdiː /) is a secondary storage device in which "each physical record has a discrete location and a unique address". The term was coined by IBM to describe devices that allowed random access to data, the main examples being drum memory and hard disk drives. [1]

4. Disk storage - Wikipedia

   en.wikipedia.org/wiki/Disk_storage

   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 ...

5. History of hard disk drives - Wikipedia

   en.wikipedia.org/wiki/History_of_hard_disk_drives

   History of hard disk drives. Historical lowest retail price of computer memory and storage. In 1953, IBM recognized the immediate application for what it termed a "Random Access File" having high capacity and rapid random access at a relatively low cost. [1] After considering technologies such as wire matrices, rod arrays, drums, drum arrays ...

6. USB flash drive - Wikipedia

   en.wikipedia.org/wiki/USB_flash_drive

   SanDisk 1 TB USB-C flash drive (2020 model) next to a 50 cent euro coin. A flash drive (also thumb drive [US], memory stick [UK], and pen drive / pendrive elsewhere) [1][note 1] is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc ...

7. Computer data storage - Wikipedia

   en.wikipedia.org/wiki/Computer_data_storage

   Computer data storage or digital data storage is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers. [1]: 15–16. The central processing unit (CPU) of a computer is what manipulates data by performing computations.