The 78-year-old Francis made the confession Thursday during a Google Hangout with several disabled kids from around the world. Francis responded to them from a Vatican audience hall during a conference of his Scholas initiative, which seeks to bring young people together via sports, art and technology.
The children involved showed Francis how they make use of technology, including braille keypads, tablets and video cameras.
Alicia, from Spain, asked Francis if he liked taking photos with his computer.
Francis replied: "Do you want me to tell you the truth? I'm a disaster with machines. I don't know how to work a computer. What a shame!"