What is SD memory card?

Secure Digital (SD) is a portable flash memory chip used on devices such as digital cameras, mobile phones and audio players. The card is about the size of the postal stamp and comes in different capacity and transmission speeds. Generally speaking, the greater the capacity of the SD memory card, the faster the transmission speed.

Flash memory is the same type of memory as in memory rods or flash drives. However, flash memory cards are formatted according to various specifications. Digital devices are designed to be compatible with one of the available card formats.

"SD" is a specific card format based on an older multimedia card specification (MMC). SD memory card is one of the most popular flash card formats that are used today. The “Secure Digital” component is the copyright protection scheme built into the chip. The purpose of protection of content for recordable media (CPRM) is to prevent protected material from excessive copy.

sD Memory card is a great way to store and transmit images, music, video and other data from portable devices to PC. Some newer computers have a built -in card reader in the system, or you can buy a cheap external card reader. Because there are many different types of flash cards, make sure that the card reader is made for a specific type of memory card or is able to read different formats. In addition to the standard version, there are also minisd and microSD cards. These cards are much smaller and are not compatible with standard SD memory card slots.

Memory card can have a protective lock at the top left. The shift of the switch to the open position allows the card to be written or read. Merging the closed switch allows reading only. This protects data from random transcription.

SD memory cards come in various capacities, from 128 MB to 1 GB and more. Usually, the device kicking is designed only for the use of cards up to maximum capacity, as stated by the manufacturer. NapThe dated MP3 player can only be designed for using cards up to 512 MB. In this case, the device will be unusable card 1 GB, although any cards lower than maximum capacity are fine.

6 By finding several smaller cards, it can be easier to find songs or pictures. Others prefer the highest capacity devices to support everything in one place. If it is preferred, it is wise to back up the PC card in case the card is lost or damaged.

SD memory cards are available wherever electronics are sold. As with other storage technologies, prices tend to be decreasing, while capacity is growing.