Classification

he term "laptop" can refer to a number of classes of small portable computers:^[14][15]

Asus I7 High-Res Notebook

• Full-size Laptop: A laptop large enough to accommodate a "full-size" keyboard (a keyboard with the minimum QWERTY key layout, which is at least 13.5 keys across that are on ¾ (0.750) inch centers, plus some room on both ends for the case). The measurement of at least 11 inches across has been suggested as the threshold for this class.^[16] The first laptops were the size of a standard U.S. "A size" notebook sheet of paper (8.5 × 11 inches)^{[citation needed]}, but later "A4-size" laptops were introduced, which were the width of a standard ISO 216 A4 sheAet of paper (297 mm, or about 11.7 inches), and added a vertical column of keys to the right and wider screens.
• Netbook: A smaller, lighter, more portable laptop. It is also usually cheaper than a full-size laptop, but has fewer features and less computing power. Smaller keyboards can be more difficult to operate.A