Why are contacts not identical on the memory card?

Memory card is a data storage device, using flash technology to record and erase memory. SD is the most widely used and widely used memory card, built into applications in digital cameras, mobile phones . When you back up your contacts to a memory card for convenient storage but in contacts on the memory card is not identical. Why is that?

Question: Why are contacts not identical on the memory card?

You can look at the illustration below, some of the directories are stored longer than the others. Also SD memory card (in the second line from the top), the last digit in the phone book (number 8) is smaller than the remaining 7 digits . So why not all contacts are not the most size and location on the memory card.

Why are contacts not identical on the memory card? Picture 1

Answer:

Contacts may be redundant or may be deleted in the previous or next section, contact data is connected or disconnected. In the Contacts section, numbers 8 and 9 are added to the MMC format when the size of the memory card format is full.

In addition, because there is not enough space to fully display the contacts (maintain backward compatibility), it is possible to delete the first number of contacts when processing your name in MMC format and SD memory card.

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