Memory Card
Unlike physically larger
storage solutions such as a hard drive that uses magnetic
disks, the memory card uses solid-state memory technology known
as Flash. This means that there are no moving parts in memory
cards. It is this quality that allows its extremely reliable
portability. Although there are other methods of data or
information storage, none are able to compare to the
versatility and convenience that flash memory
provides.
This technology subsequently
allows a memory card to be much smaller and lighter than hard
drives. A typical memory card, for example, has a mass of just
a few grams; the heaviest being just 4 grams. As for the
dimensions, lengths range from 11 mm to 50 mm; widths are from
12.5 mm to 43 mm; and thickness are from 0.76 mm to 5 mm. These
are all much smaller than any other storage medium.
Back in 1994, the first flash
based data storage device for portable gadgets was launched.
This was created by ScanDisk, and the product was called
CompactFlash. Over the next decade, both manufacturers and
consumers saw the great advantages of memory cards. As such,
different brands have been developed by different companies.
Some of these are Toshiba’s SmartMedia; Siemens and ScanDisk’s
MultiMediaCard; Sony and ScanDisk’s Memory Stick; and
Panasonic, ScanDisk, and Toshiba’s Secure Digital.
|