What Is a CF Card?
CF is the abbreviated name for Compact Flash cards. SanDisk was the first company to release the Compact Flash card into the public market, in 1994. Compact Flash cards are small, removable mass storage devices and are most commonly used in digital cameras.
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Function
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Compact flash cards store digital data, most commonly digital photographs. The cards can retain data indefinitely and require no batteries or moving parts to operate. CF cards are most commonly used in digital cameras, digital phone cards, laser scanners and modems. The cards act as a retainer for digital memory in these devices.
Size
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Compact Flash cards come in a variety of storage sizes. The storage size reflects the amount of data that can be stored on the card at a single time, rather than the physical size of the card itself. The most common sizes for compact cards are 128 MB (very small), 512 MB, one GB, and up to 64 GB. Larger models are currently in development.
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Types
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There are two types of Compact Flash cards, Type I and Type II. Type II cards are approximately half of the physical size of Type I cards. This is the only difference between the two types of Compact Flash cards. Both types rely on flash technology to operate, and can operate at either 3.3V or 5V safely.
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References
Resources
- Photo Credit compact flash card image by AndreyPS from Fotolia.com
