NORTHFIELD, MINN. - Jason Hitchcock was suffering withdrawal pains Wednesday as he entered a room of Carleton College students who had pledged to give up the digital life for 24 hours.

That meant no e-mail. No on-demand TV shows, iTunes or streaming news. Break out the No. 2 pencils and college-ruled paper: No word processing, either.

A political science major, Hitchcock rated his difficulty with computer-free life at a maximum 10 and scribbled "Agh" next to his name on a sign-in sheet.

Three Carleton students working on a documentary film project, to be completed in the spring, went computer-free three weeks ago. It was, they said, in the name of curiosity about their own and society's dependence on computers. They challenged others to join them.

Hitchcock, a senior, was one of several dozen students participating in the daylong social experiment.

"I'm finding that this was a stupid pledge to make," said Hitchcock, who ironically and accidentally sported a T-shirt for a website where he is a top user.

On Wednesday, about a dozen students gathered to socialize face to face instead of online via the social networking website Facebook.com, where users can virtually hug, head-butt and high-five friends without ever physically touching them -- or buy them virtual gifts, including a bonsai tree that grows over time.

As senior Mitchell Lundin, one of eight students working on the documentary and one of three trying life tech-free, put it, "This is real life standing in for Facebook, which is standing in for real life."Someone said, 'Wow, I admire you,'" said Caitlin Magnusson, a junior who is also among the tech-free three. "It's like I'm training for a marathon."

Magnusson mummified her computer in paper and duct tape before shoving it into a closet to avoid temptation.

Magnusson, Lundin and Andrew Tatge vowed to use typewriters for academic papers and use phones instead of e-mail and instant messages. At times, they have chased people down on foot to talk to them.

They have turned to, yes, the printed versions of newspapers and books.

"I've been having serious doubts as to why I'm doing it," Magnusson said. "I love computers. At the same time, I think I use computers too much."

But the computer's specter has not been totally shaken. Lundin's girlfriend sent an e-mail on his behalf. Magnusson confessed to watching some YouTube videos on friends' computers. And Tatge had to take a test for a Chinese class on computer or risk academic harm.

Society's dependence on computers, observed classmate and cameraman Tom Schmidt, has reached a point "where there's no turning back."

Unexpected tasks such as finding books or videos in the library became nearly impossible with the extinction of the card catalog.

In an ironic twist, Wednesday's in-the-flesh gathering was heavily promoted on the Facebook site itself. (By a classmate who had not pledged computer abstinence, of course.)

Carleton students also hit the pavement promoting the event and "Unplug Your Computer Day," passing out handwritten brochures that offered tips for computer-free survival, at least on a short-term basis: Leave an "away" message on Facebook, write notes by hand, do web-based homework in advance and get batteries for your CD player.

About 40 students signed pledges to jilt their computers for the day.