Memory card is an electronic device to store digital data. Such data storage device also can be called as flash drive. A memory card generally used in electronic devices like digital cameras, mobile phones, laptops etc. memory cards are re-recordable and retains data without power. Memory cards getting popular because its compatibility with various electronic devices. And compatibility is only because of manufacturers maintaining proper standard of design of memory cards.
Now a day most generally used memory cards are secure digital cards i.e. SD cards. SD cards storage capacity ranges from 4 GB to 64 GB. Most of the users want memory card for their mobile or digital camera. Day by day the capability of mobile phone is increasing then obviously the data storage requirements for mobile also increasing. So, various manufacturers of memory cards mostly consider mobiles and cameras while preparing memory cards.