The 78-year-old pontiff said he doesn't know how to work a computer.
"Do you want me to tell you the truth?" he said. "I'm a disaster with machines. I don't know how to work a computer. What a shame!"
A lack of technological expertise hasn't stopped Francis from becoming the most high-tech pope ever. The Google+ hangout -- which put the pope in front of a webcam and allowed him to answer questions from children around the world -- was his second time hosting such an event.
The pope also tweets and has been happy to indulge quite a few visitors to the Vatican on selfie requests.
The Associated Press contributed to this report.