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In the list those manufacturers that also produce hard disk drives or flash memory are identified. Additionally, the type of memory used in their solid-state drives is noted. This list does not include the manufacturers of specific components of SSDs, such as flash memory controllers. [1]
Compact (24 mm × 32 mm × 1.4 mm), swifter, optional DRM, up to 16 GB MMCmicro 2005 4 GB Subcompact (14 mm × 12 mm × 1.1 mm), optional DRM, 16 MB to 4 GB Nano Memory: proprietary (from Huawei) 2018 512 GB [3] Subcompact (12.3 mm × 8.8 mm × 0.7) smallest dimensions as of 2024. Can use Nano-SIM slots. Secure Digital
A memory card, such as MMC and SD, is shaped to fit into a special port for the card. A USB flash drive connects via USB and is not constrained by shape and size as a card is. [2] [11] In general, an SSD uses a relatively fast interface such as Serial ATA (SATA) or PCI Express (PCIe) paired with a logical device interface such as AHCI or NVM ...
A 500 GB Western Digital hard disk drive with a 16 MB buffer In computer storage , a disk buffer (often ambiguously called a disk cache or a cache buffer ) is the embedded memory in a hard disk drive (HDD) or solid-state drive (SSD) acting as a buffer between the rest of the computer and the physical hard disk platter or flash memory that is ...
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 ...
Like most other electronic storage, flash memory is assembled in powers of two, so calculating the physical capacity of an SSD would be based on 1,073,741,824 (= 2 30) per binary GB or GiB. The difference between these two values is 7.37% (= (2 30 − 10 9 ) / 10 9 × 100%).
1.18 MB [32] 360 MFM HP 9130K 5 1 ⁄ 4 inch Double 2 35 16 256 286 kB [33] 300 MFM Burroughs MD122 8 inch Double 2 139 44 256 soft 6.26 MB [18] 524 MFM Memorex 650 8 inch single 1 50 8 3,500 b: hard 1.4 Mb [15] 375 FM Memorex 651 single 64 32 1.056 b: 2.2 Mb [17]
NEC demonstrated multi-level cell (MLC) technology in 1998, with an 80 Mb flash memory chip storing 2 bits per cell. [36] STMicroelectronics also demonstrated MLC in 2000, with a 64 MB NOR flash memory chip. [37] In 2009, Toshiba and SanDisk introduced NAND flash chips with QLC technology storing 4 bits per cell and holding a capacity of 64 Gbit.
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