A paper card on which notes are written, or which is intended for such use(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "notecard" in a sentence
"Another neat thing I learned from their notecard is that they're very open to allowing people to create scripts for this machine and then allowing you to sell them in the store and splitting the profits with you 50/50."
"Please title the notecard: Review Copies Request - Type your full name"
"Then select "notecard," and a fresh new notecard appears on your screen."