The Ultrabook is a type of laptop, trademarked by Intel, that falls in thin and lightweight laptop category (considered ultraportable laptops). It is Intel's attempt to compete against the tablet computers running ARM processors. The Ultrabooks will use Sandy Bridge, Ivy Bridge and Haswell processor architecture developed by Intel. The picture here shows an ASUS Zenbook and a good example of an Ultrabook.
The first Ultrabooks are to be released in the 4th quarter 2011 as the first phase, under the brands of Acer, Asus, Lenovo, and Toshiba. They will use solid-state drives (SSD) for storage and feature the Intel Core i3, i5 or i7 processor. Each will be no thicker than 20 mm, weigh 3.1 pounds or less, have battery life of 5 to 8 hours and have a price point of under $1000 USD for base models. A second phase of Ultrabook release is set for 2012 and will feature a 30% increase in integrated graphics performance and 20% increase in CPU performance.