The 10 biggest tech mergers in history almost all had terrible endings

The world is still reeling from the news that Dell is planning to acquire EMC for $67 billion - the biggest pure-technology merger of all time, and one of the biggest tech deals ever.

But before Dell executives break out the champagne, it might be time to take a walk down memory lane, and remember the ghosts of mergers past.

Spoiler alert: Of the ten biggest tech mergers of all time, only a few have happy endings.

The rest resulted in depressed share prices, corporate confusion, and layoffs.