La Gioconda is the famous painting Mona Lisa which was painted by Leonardo Da Vinci.
The name Gioconda comes from the last name of the model who sat for Da Vinci. Her husband was Signor Giocondo thus she be came La Gioconda. When you study Italian you discover that there is always gender and number ( male/female and singular/plural).
In general when a word ends in the letter “O” it is masculine/ singular. Il libro ( book)
When the word ends in the letter “A” it is feminine/singular. La penna ( pen ) . When the word ends in the letter “I” it is masculine/plural I libri ( books). When the word ends in the letter “E” it is feminine/plural le penne ( pens). Thus the reason we call some pastascuitta penne because they look like little pens.
By the way pasta in Italian is a sweet which you purchase in una pasticceria. Pastascuitta is define as ( gli spaghetti, le lasagne, e le penne).