Search results
Results from the WOW.Com Content Network
Several methods have been proposed for producing computing devices or data storage devices that approach physical and practical limits: A cold degenerate star could conceivably be used as a giant data storage device, by carefully perturbing it to various excited states, in the same manner as an atom or quantum well used for these purposes. Such ...
Nearline storage (Tertiary storage) – Up to exabytes in size. As of 2013, best access speed is about 160 MB/s [11] Offline storage; The lower levels of the hierarchy – from disks downwards – are also known as tiered storage. The formal distinction between online, nearline, and offline storage is: [12] Online storage is immediately ...
5D optical data storage (also branded as Superman memory crystal, [1] a reference to the Kryptonian memory crystals from the Superman franchise) is an experimental nanostructured glass for permanently recording digital data using a femtosecond laser writing process. [2]
Off-line storage is computer data storage on a medium or a device that is not under the control of a processing unit. [9] The medium is recorded, usually in a secondary or tertiary storage device, and then physically removed or disconnected. It must be inserted or connected by a human operator before a computer can access it again.
Seattle Computer Products (Tim Paterson) 1980 QDOS/86-DOS (later IBM PC DOS 1.0) ProDOS: Apple: 1980 Apple SOS (later ProDOS 8) DFS: Acorn Computers Ltd: 1982 Acorn BBC Micro MOS: ADFS: Acorn Computers Ltd: 1983 Acorn Electron (later Arthur/RISC OS) FFS: Kirk McKusick: 1983 4.2BSD: FAT16: IBM, Microsoft: 1984 PC DOS 3.0, MS-DOS 3.0: MFS: Apple ...
The minimal chunk size (page) for a read operation is much smaller than the minimal chunk size (block) for a write/erase operation, resulting in an undesirable phenomenon called write amplification that limits the random write performance and write endurance of a flash-based storage device. Some solid-state storage devices use RAM and a battery ...
Universal memory refers to a computer data storage device combining the cost benefits of DRAM, the speed of SRAM, the non-volatility of flash memory along with infinite durability, and longevity. Such a device, if it ever becomes possible to develop, would have a far-reaching impact on the computer market.
Device interfaces where one bus transfers data via another will be limited to the throughput of the slowest interface, at best. For instance, SATA revision 3.0 (6 Gbit/s) controllers on one PCI Express 2.0 (5 Gbit/s) channel will be limited to the 5 Gbit/s rate and have to employ more channels to get around this problem. Early implementations ...