Ultrabooknoun
(computing) A very lightweight and thin portable computer the areal size of a notebook computer or subnotebook.
Ultrabook
Ultrabook is a marketing term, originated and trademarked by Intel, for a category of high-end laptop computers. They were originally marketed as featuring ultra thin form factor and light weight design without compromising battery life or performance, and when the term was originated they generally were enough smaller than average laptop models to qualify as subnotebooks.
Laptopnoun
(computing) A laptop computer.
Laptopnoun
a portable computer small enough to use in your lap
Laptop
A laptop, laptop computer, or notebook computer is a small, portable personal computer (PC) with a screen and alphanumeric keyboard. These typically have a form factor, typically having the screen mounted on the inside of the upper lid and the keyboard on the inside of the lower lid, although 2-in-1 PCs with a detachable keyboard are often marketed as laptops or as having a Laptops are folded shut for transportation, and thus are suitable for mobile use.