On Fri, Aug 11, 2017 at 02:25:01PM -0500, Doug wrote: > > On 08/11/2017 01:46 PM, ju...@tutanota.com wrote: > > There are three major types of flash chip types : SLC - MLC - TLC > > > > how-to check my usbkey/sd/memory card ? > > > > -- > > Securely sent with Tutanota. > > I am not being a wiseguy. > What is the difference, and why does it matter?
The basic difference is the number of bits recorded in a single cell, and that affects both the storage density and its long term reliability. More bits == more dense but less reliable. To compensate for long term reliability, SSD manufacturers use a variety of strategies involving staging data in RAM, compressing it, and implementing other special storage structures. On a removable-media flash device, none of those strategies are used. -dsr-
