Gets data from the user. It can be used in two forms:
INPUT "How many", variable INPUT "How many"; variable
The only diffence between the two is the punctuation. The semicolon adds a question mark, the comma does not. Therefore the first one asks
and the second one asks
The variable can be any variable name you want. You could call it num, or name$, or hjdfksalhjgkfldah. Just remember that if you want to calculate something with it, make it numeric, and if you want to type something in, make it a string variable.