Memory Cards

Introduction:
Memory card is a solid state flash memory(type of memory which can be reprogrammed) data storage device which is used in many electronic devices such as mobile phones,digital cameras,music players and video games.In recent times,the usage of memory cards has shown a tremendous growth.

History of Memory cards:
The P.C. card launched in 1990 was the first memory card that came into existence.In current age,this P.C. card is used in commercial purposes.Some other memory cards were also launched during the same period among which compact flash,smart media and mini cards are the popular ones.Including these,there were some more that were very commonly used in the period from 1990 to 2000 such as memory stick,S.D. picture.The size of these cards continued to reduce throughout this period.In the electronic gadgets available in the market these days,place for memory cards is allotted at the time of manufacturing.Some of these devices even have place for more then one memory card.

Types of memory cards:

Micro SD Card:
This type of card is a flash removable memory card.Such cards are mainly used in mobile phones,portable media players,GPS devices etc.This is the smallest memory card in size among all present types.

Mini SD Card:
This card is a form factor(conversion of energy from one object to another object) removable and portable memory device.It is used in mobile phones,MP3 players,digital cameras and other similar gadgets.The storage capacity of these cards may vary from 16 MB to 8 GB.

XD-Picture Card:
These cards are basically used in digital cameras for storing pictures.Original XD-cards come into various storage sizes ranging from 16 MB to 512 MB.