HP Prime micro sd

[pier4r]

Well if you want to save many photos at high resolution I guess you are using the wrong device. The storage memory is like a "disk" in a computer. the memory you are talking for is Ram. The "sd" is like the storage memory on the 50g, it is not ram.
Although the Ram of a calculator is great because it holds the content even if you restart it, so it cannot be large due to energy requirements.

Here: https://en.wikipedia.org/wiki/Random-access_memory
and: https://en.wikipedia.org/wiki/Flash_memory
plus: https://en.wikipedia.org/wiki/Secure_Digital

If the storage of the prime is not enough try to use a smartphone or a tablet (and maybe you can tell us which app was able to let you to do what to do, because it would be interesting).

Also I will be interested in any smartphone or tablet that is well known and costs less than 150$ that, without custom ROM, allows you to use the ram as a disk. Without wiping out its contents when you restart it (I give you a clue: none).

Oh and if you consider tablets and smartphones that cost up to 1000$, still not considering custom ROMs, the clue would be the same. Still none.

We can even jump on PCs. Do you know any well known OS for PC that keeps the content of the ram available after a restart (without special "searching" programs)? I do not. You can maybe load 4GB of photos in ram with a PC, but once you restart the system, all gone.

Having devices with much more memory is difficult when they have to run on battery for some days keeping their content.

All this remembers me of this comment: http://bugs.hpcalc.org/show_bug.cgi?id=260 that is funny.

On a side note, aside from loading large data, like photos, that does not require much effort (just use a modern digital camera and suddenly one has large data). Using only programs, equations, plots and so on it is very difficult for me to fill even the 230 kb of available memory of the 50g with meaningful data. I cannot imagine 16000kb for the prime.