Hewlett-Packard is proving just how hard breaking up can be.
The aging technology company has announced plans to lay off as many as 21,000 workers over the past year. That's the most layoffs disclosed by a U.S. company since March 2014, according to outplacement firm Challenger, Gray & Christmas.
The moves are linked to HP's(HPQ) decision to break up into two publicly traded companies by the end of 2015. One will focus on fast-growing servers, software and cloud technology. The other will continue selling the PCs and printers that consumers have fallen out of love with.