must required project for me

sir, i want to attach a memory card or device to the scientific calculator .i have no idea please guide me soon im waiting for answer.

What do you actually want to do? Well, a calculator already functions well. You don't need to add any extra memory.

Does the calculator support memory cards?

If the answer is no, then it's no, buy a calculator which does support memory cards.

If the answer is yes then RTFM and if you still don't know, tell us the make and model number and we might be able to help.