Mary Kipin, 82, has a computer, but all she really uses it for is to play bridge. Marie Mutz, also in her 80s, is eager to find out what a PDF is — “I’m waiting for my neighbor to tell me,” she said. Sally Anderson, 78, has been promising herself a new computer for years — her old one was a dial-up that spent the bulk of the early aughts gathering dust. “I did send a few e-mails,” Ms. Anderson, who lives near Gramercy Park, said. “The first one I sent 16 times.”

Thus did the three women find themselves in a ground-floor room, bathed in fluorescence, on Thursday at the First Presbyterian Church, in Greenwich Village, just north of Washington Square Park. Every month the church hosts a seminar as part of its Aging Well series, and on this night the topic was “What’s Wi-Fi and Do I Really Need a Smartphone?” New York may be one of the most wired, smartphone addicted-slash-addled cities in the nation, but the pace of the technological leaps has left a lot of older people behind, wondering what they were missing and whether it was worth finding out.

About three dozen people attended, most in their 70s and 80s. Many came armed with answers of their own. Whatever Wi-Fi was, it sounded a little scary, untrustworthy or hopelessly complicated. As for smartphones, they had turned people, body snatcher-like, into distracted drones.

“They’ve dropped out of social intercourse on the street,” said Bob Moran, a 76-year-old mostly retired social worker who owns a dying computer but no cellphone.