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Asus, a day after Acer introduced the first of its ultrabooks, is readying two of its own ultra-thin and -light laptops to hit the market on Oct. 12.

Asus executives on Oct. 11 announced what they are calling Zenbooks, the 11.6-inch UX21 and the 13.3-inch UX31, two systems that are joining Acer’s Aspire S3-951 as among the first entrants in the ultrabook category being championed by chip giant Intel.

Asus Chairman Jonney Shih announced the new Zenbooks at a launch event in New York.

Intel officials first introduced the idea of ultrabooks at the Computex 2011 show in May, proposing thin and light laptops that offer the benefits of traditional systems with many of the features found in tablets, including long battery life, instant-on capabilities and constant Internet connection. They’ve called on ultrabooks to be less than 0.8 inches thick and come in priced at less than $1,000.

They’re aimed at competing with the increasingly popular tablets as well as with Apple’s ultra-thin and -light MacBook Air, the lowest-end model of which costs $999. Intel officials also see ultrabooks as a way of boosting sales in the slumping PC market.

Ultrabooks also will help Intel in its push to become a larger player in the mobile computing market.

Acer’s Aspire S3 is being priced at $899; Asus’ UX21 starts at $999. The Zenbook UX31 will be priced starting at $1,099, and going up as high as $1,499. The UX21, with its brushed metal exterior, is about 0.13 inches thick at its thinnest part. Like tablets and Acer’s system, the Zenbook can boot up quickly, in about 2 seconds out of standby mode.

The systems from both Acer and Asus are powered by Intel’s Core “Sandy Bridge” processors and run Microsoft’s Windows 7.

A key difference between Acer’s Aspire S3 and Asus’ Zenbooks is in the storage technology being used. Asus’ systems use 128GB hybrid solid-state disk (SSD), while Acer uses a combination of a 20GB SSD and a 320GB hard drive. The SSD stores the Aspire’s operating system and maintains the ultrabook’s current state so that it can restore the laptop to its previous state when coming out of Sleep or Deep Sleep mode, according to Acer.

In addition, whereas the Aspire S3 comes with USB 2.0, Asus’ systems feature USB 3.0, which Shih said is 10 times faster than USB 2.0. The hybrid approach with the SSD and hard disk drive, and using USB 2.0 over USB 3.0, helped Acer bring the Aspire S3 in at $899.

To read the original eWeek article, click here: Asus to Start Selling Ultrabooks Oct. 12