The portables include pair of convertible notebooks and what the company calls the world's thinnest 14-inch Ultrabook.
Laptops & Desktops
John Morris and Sean Portnoy deliver straight talk about notebook and desktop computers.
John Morris is a former executive editor at CNET Networks and senior editor at PC Magazine.
Sean Portnoy is a former executive editor at Computer Shopper magazine and editor at CNET Networks.
Most of the notebooks weigh less than 4 pounds apiece, though only the Portégé Z30 qualifies as an Ultrabook.
The 300 prototypes will feature a variety of Intel processors and Nvidia graphics cards inside.
Heat-assisted magnetic recording can blast through current data density limits, but don't expect drives using the technology before 2016.
Dell unveiled a line of Venue Windows 8 and Android tablets, an 11-inch hybrid and a couple premium XPS Ultrabooks that it hopes will shake the PC market out its slump.
Among the slew of new portables are a pair of Ultrabooks.
The IdeaCentre B750 offers a big display with a 21:9 aspect ratio and starts at $1,199. Three other new IdeaCentre all-in-ones have also been unveiled.
I've yet to to find a hybrid that is both a great laptop and a good tablet. But the latest version of the Dell XPS 12, which has been updated with Intel's Haswell processor, comes pretty close.
Another Windows RT slate appears to bite the dust, leaving whatever market there is to Microsoft's Surface RT and forthcoming Surface 2.
The latest Y Series processors use so little power that they are now a viable option for fanless tablets and 2-in-1 devices. HP is the first to announce a 2-in-1 with the latest Haswell-Y chip, but will others follow?