Different forms of storage are available, each with advantage and disadvantages.
Following is a summary of the low cost storage options for instrumentation:
Available in different forms. Generally needs a parallel interface
to the micro (more complex circuit). Also tends to need power backup
for when the instrument batteries or mains power are removed. Useful
for the storage of relatively large amounts of data or where the
storage needs to be carried out at high speed (>10ms).
||Particularly useful in I2C format, giving a serial interface
and simplifying the circuit, thus improving reliability and reducing
cost. Needs no battery backup as storage is non-volatile. Useful for
storing smaller amounts of data (<1 Mbit) and where the rate of
storage is less than 10ms.
For information on other forms of data storage (flash, miniature disk
drives, etc.) then please contact Client Software directly. There are
many possibilities but they are still usually out of the realms of the
low cost instrument manufacturer. This may not be the true in your case