| Providing you with storage for your digital cameras, | | | | Mini SD cards and Micro SD Cards are the miniature |
| cellphones and PDAs, SD card (Secure Digital Memory | | | | variations of the SD Card. They were introduced with |
| Card) offers extra space to store data, images, and | | | | dramatically smaller footprints: the former in 2003 and |
| files. It is a flash memory card that uses 32x24mm | | | | the later in 2005. Electrically, as well as software |
| form factor like the Multi-MediaCard (MMC). But it | | | | compatible, both these variations fit into a regular SD |
| differs from the later in the sense that it is slightly | | | | slot via an adapter. One of the great things about |
| thicker (2.1mm vs. 1.4mm), and its readers accept | | | | these cards is that the user can choose the size, as |
| both formats. These cards are available with a | | | | well as the quantity to have on hand, according to his |
| storage capacity of up to 4GB. | | | | needs and budget. |
| SD Cards support encryption and content protection | | | | One thing to be remembered while buying SD cards: |
| that is indicated by the word 'Secured'. A user can | | | | if the resolution of your digital camera is high, you |
| ensure that the data he has stored are secured | | | | need a high capacity memory card. It cannot be |
| unless and until he takes the necessary steps to | | | | determined as to how many images you can store |
| unprotect them. Thus, SD cards offer the benefit of | | | | on a particular memory card. It depends on various |
| 'write protection'. So, fears of accidentally losing or | | | | things like: the kind of the images, their file type and |
| changing data can be eliminated by using these cards. | | | | the compression rate per photograph. Typically, a 128 |
| Still, these are used for regular storage due to their | | | | or 256 megabyte card is sufficient for an average |
| small size and fast transfer rate. | | | | photographer who use a 3-5 mega pixel camera. |