next week's versus wall - compact disc or floppy disk?

Currently we have two "Versus Walls" at my branch, which are on carpeted walls, one in the play area for younger kids and another in the teen area for older kids.  Kids can write down their versus ideas on a slip of paper and put it in a pretty jar on our desk (for example, ketchup vs. mustard).  Once a week a teen volunteer picks out their favorite idea from the jar, changes out the question from last week and adds images of their choosing for the new question.  Kids can vote for their question by using emojis that have velcro attached to the back. Whichever wins (mustard for example), gets to stay on the wall with a sign that reads, "last week's winner."  This is a very popular thing at my branch and was created years ago by a super smart person who is no longer here (I actually have her job now).

Today two little boys were writing down their ideas for the versus wall while their grandma helped them spell the words.  When one of the boys finished writing his question, he began to draw a picture that correlated to his question (hot dogs with cheese inside vs. hot dogs with marshmallows inside).  The grandma stopped him and told him that they'll add the pictures later.  The little boy asked where they found the images, and grandma responded by telling him we get them from a disc.  The little boy looked very confused so grandma went on to say that we insert a disc into the computer and pick out the clipart from the disc.  

The two little boys and I exchanged a look, and though they were young, I think they totally understood that we couldn't rain on grandma's parade because they just nodded and moved on to the next question.

Interestingly enough, we don't even have a disc drive anymore.  If patrons want to open something on a disc, we have an external drive they can borrow.  We do, however, receive donations of discs with programs and clip art on them, so if we really wanted to, we could borrow that external drive and find some antiquated clipart.