Memory Card

An electronic flash memory device offering an easy, fast and reliable way for storing and transferring digital data.
Non-volatile storage i.e. data is not lost even when the card is removed from the device and can be reformatted and reused.
Now widely used in electronic devices like mobile phones, digital cameras, handheld devices, laptops, mp3 players etc.

Compact Flash

Is the most common digital camera memory.
It was designed based on PCMCIA standard card and can fit into PCMCIA slot with an adaptor.
There are two types : type | and type ||, where type || is thicker than type |.
Type | - 43 x 36 x 3.3 mm and type || - 43 x 36 x 5 mm.
Capacity ranges from 64 MB to 16 GB.
Size of card is bit bigger compare to other types.

SD (Secure Digital) Card

Used in portable devices like digital video cam recorder, mobile phones, handheld computers etc.
Standard size is 32 x 24 x 2.1 mm.
Contains 9 pins and maximum transfer rate varies from 100 - 200 MBPS
On left hand side of the card contains write protection tab, which prevents data from being to be read, written and deleted.
MiniSD Card
- Offers same features of SD card, but smaller in size compare to SD card.
- Used in new mobile phones, handheld devices etc.
- Size : 21.5 x 20 x 1.4 mm and storage capacity ranges from 16 MB to 8 GB as miniSD and 4 GB to 32 GB as SDHC (Secure Digital High Capacity).
- Contains 11 pins and maximum transfer rate is 100 MBPS.
MicroSD Card
- It is one of the smallest memory card available.
- Used in new cellular phones, GPS devices, portable media player etc.
- Size: 15 x 11 x 1 mm and storage capacity ranges from 1 GB to 64 GB.
- Contains 8 pins and maximum transfer rate is around 200 MBPS.
To use MiniSD and MicroSD card in SD slot, you need an passive adaptor.
Card differs in size and shape but not in electrical interface.

Multi Media Card

Memory Sticks

Sony developed it for cyber shot digital camera, cellular phones, PDA's and other wide varieties of sony electronic devices.
Sony memory stick has limitation of 128 MB, which is resolved in Memory stick PRO.
Memory Stick PRO has maximum storage capacity and faster file transfer speed.
Memory Stick Duo has small form-factor.
Similar types of cards are available with advanced features:
Memory Stick PRO-Duo
Memory Stick Micro
Memory Stick XC

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