Ahead of next month's 2010 World Expo in Shanghai, we explore tech innovations--from the telephone to touchscreens--that premiered during the Fair's sprawling 159-year history.
Dell, HP, and Lenovo are rushing to compete against the Apple iPad in the tablet PC market, which could reach 50 million units by 2015.
The iPad has captured many hearts and minds, but a fleet of rival tablets led by a separatist Android army is about to attack, armed with HD Flash video, multitouch screens, front-facing cameras, multitasking...even Windows 7. Let's take a look.
Speedy all-in-one PC runs Windows 7 and OS X, but lacks extras like multitouch, Blu-ray, and a TV tuner. Performance gain over previous 20-inch iMac is marginal, but the new screen is much improved.