A Digital Shift on Health Data Swells Profits in an Industry

By JULIE CRESWELL

Jeff Swensen for The New York Times

Dr. Vivek Reddy, a neurologist at the University of Pittsburgh Medical Center, also works on its digital records effort.

As doctors and hospitals struggle to make new records systems work, the winners are big companies that lobbied for the legislation that allowed their sales to soar.

F.C.C. Moves to Ease Wireless Congestion

By EDWARD WYATT

The commission proposed to make a big part of the spectrum, some of which is in government hands, available for unlicensed devices like Wi-Fi routers.

China Says Army Is Not Behind Attacks in Report

By DAVID BARBOZA

The Ministry of National Defense said a security company’s research linking a military unit to thousands of hacking attempts against United States targets “has no foundation in fact.”

Chinese Army Unit Is Seen as Tied to Hacking Against U.S.

The Printrbot Jr. in the process of making a 3-D model of a house.

A Factory on Your Kitchen Counter

By STEVEN KURUTZ

One word: plastics. There are still kinks to be worked out, but 3-D printers may be the home appliance of the future.

Slide Show

Bits Blog

Marissa Mayer Puts Her Stamp on Yahoo.com

By NICOLE PERLROTH

On Wednesday, Yahoo introduced a new site design. Gone are the cluttered ads and irrelevant content. In their place will be customizable, personalized content and new social features.

Bits Blog

PopSugar, a Web Site for Women, Gets a Makeover

By CLAIRE CAIN MILLER

PopSugar, with its focus on celebrities and shopping, is illustrative of several shifts that are reshaping digital media, from video to mobile to search.

The Nick app features free games, interactive polls and slide shows floating against a bright orange background.

Nickelodeon Hopes Its App Wins Hearts

By AMY CHOZICK

Nickelodeon designed its first app as a noisy, colorful smorgasbord of animated clips, music videos and games. But there’s very little actual television.

Bits Blog

Apple Computers Hit by Sophisticated Cyberattack

By NICOLE PERLROTH

Apple says its systems were attacked by the same group that hit Twitter and Facebook. Like Facebook, Apple confirmed that its employees' computers were infected with malware when they visited a Web site for mobile developers.

DealBook

Court Gives Investor an Edge in a Lawsuit Against Apple

By MICHAEL J. DE LA MERCED

A federal judge says he is leaning toward the hedge fund magnate David Einhorn's contention in a lawsuit that Apple violated securities regulations by improperly bundling several shareholder proposals into one matter.

Michael S. Dell started the company 29 years ago.

Slide at Dell Continues as Earnings and Sales Fall

By THE ASSOCIATED PRESS

The ailing PC maker has plans to go private in a $24.4 billion deal, but two big shareholders have said they will vote against the deal unless the offer is sweetened.