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Zenbooks are a family of ultrabooks – low-bulk laptop computers – produced by Asus. The first Zenbooks were released in October 2011, and the original range of products was amended and expanded during 2012. Models range from 12-inch laptops, featuring power efficient components but lacking connectivity and having only integrated graphics processors, to 15-inch laptops with discrete graphics processing units and optical disc drives. Most (though not all) Zenbooks use Intel Core ultra-low-voltage processors and Nvidia GPUs when integrated graphics are not used. Asus introduced new models with touch screens to take advantage of Windows 8 after its release in late 2012. Most models drew comparisons to the Macbook Air. The most recent release in the Zenbook line is the upmarket Zenbook Infinity UX301 series.〔(【引用サイトリンク】title=Notebooks and Ultrabooks: UX301LA )〕 Asus designed the Zenbooks with brushed aluminium chassis and high rigidity, rather than plastic, the usual laptop construction material. A pattern of concentric circles on the lids is said to represent ripples in water and represent the "zen philosophy" that designers wanted to portray when creating the laptops. Zenbooks have been generally well received due to their chassis design and appearance as well as the high quality screens used in later models. However, the touchpad software was found to be erratic, particularly on the early models and some of the models received criticism for their high prices. Some models (such as the UX32) suffer from lockdown when the lithium polymer battery cell gets drained or discharged below its recommended threshold, for example if the device is left on and unattended. The result is that the charger will fail to recharge the battery even when plugged in, leaving the machine in a near-complete unresponsive off-state. The machine can often be revived by pressing the power-on key for 10 seconds, whereupon it will start recharging.〔 == Design == In 2009 Asus released the UX50V, a 15 inch laptop that was focused on energy efficiency and had a thin profile.〔 The laptop was rated poorly by reviewers as it under-performed and had mediocre battery life, despite the installed energy efficient hardware.〔 Although not branded as one, it bore the same "UX" product code as many of the later Zenbooks and was an early foray into the ultraportable market. The Zenbook name was proposed by Asus chairman Jonney Shih to reflect the "zen philosophy" applied to the design.〔 The chief designer, Loewy Chen, had wanted to incorporate design elements from luxury watches into his products for a long time. Zenbooks were the first opportunity to put this into practice,〔 the crossover being achieved, he said, by "the unfolding of the laptop from the side recalling the elegance of minute and hour hand movements".〔 The reference to watches is also reflected in the marketing of Zenbooks; Asus published design sketches overlaying an open Zenbook on a watch face, and video advertisements feature similar imagery.〔〔 The concentric circles on the lid of Zenbooks were intended to look like ripples in water and to reflect "philosophical ideas such as the infinite nature of Zen thinking and self-improvement".〔〔 The bodies of the Zenbooks are made of aluminium, chosen for its light weight, strength, vibration dampening, appearance and acoustic properties.〔 Both the bodies and lids are CNC milled and brushed for appearance.〔 Reviewers have noted the resulting superior rigidity and complimented the appearance of the Zenbook range.〔〔 The lid is available in three colours: dark silver/purple (pictured), rose gold and hot pink.〔 To preserve space, Zenbooks use two PCBs connected by a communications ribbon so it can have ports on both sides of the device, with a heatsink and fan centred between them.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Zenbook」の詳細全文を読む スポンサード リンク
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