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Similarly it is often possible to wirelessly connect a laptop using a cellphone as a modem. Infra-red, USB and Bluetooth solutions are available. The same caveats regarding price of service apply. * Apple Computer - iBook, PowerBook and MacBook Pro * Improved liquid crystal display design, in particular active-matrix display technology, and increasingly, color screens. Early laptop screens were black and white or grayscale passive-matrix LCD displays prone to heavy shadows and blurry movement (some portable computer screens were sharper monochrome plasma displays, but these drew too much current to be powered by batteries). Improvements in production technology meant displays became larger, sharper, had higher display resolution, and could display color with great accuracy, making them an acceptable substitute for a traditional CRT monitor. Later PowerBooks introduced the first 256-color displays, first true touchpad, and first built-in Ethernet networking. * Improved hard disk technology. Early laptops had only floppy disk drives. As thin, high-capacity hard disk drives with higher reliability and shock resistance and lower power consumption became available, users could store their work on laptop computers and take it with them.

Later PowerBooks introduced the first 256-color displays, first true touchpad, and first built-in Ethernet networking. A more enduring success was the Compaq Portable, the first product from Compaq, introduced in 1983, by which time the IBM Personal Computer had become the standard platform. Although scarcely more portable than the Osborne machines, and also requiring AC power to run, it ran MS-DOS and was the first true IBM clone. (IBM's own later Portable Computer, which arrived in 1984, was notably less IBM-compatible than the Compaq.) * Panasonic - Toughbook,Let's Note(Available only in Japan) Another notable computer was the Cambridge Z88, designed by Clive Sinclair, introduced in 1988. About the size of an A4 sheet of paper, it ran on standard batteries, and contained basic spreadsheet, word processing, and communications programs. Although it anticipated the future miniaturization of the portable computer, as a ROM-based machine with a small display it can — like the TRS-80 Model 100 — also be seen as a foreruner of the PDA. * Sony - VAIO

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By the end of the 1980s, laptop computers were becoming popular among business people. The NEC Ultralite, released in mid-1989, was perhaps the first notebook computer, weighing just over 2 kg; in lieu of a floppy or hard drive, it contained a 2-megabyte RAM drive, but this reduced its utility as well as its size. The first notebook computers with standard drives were the Compaq LTE series, introduced toward the end of that year. Truly the size of a notebook, they had hard drives and standard-resolution screens. See also As technology improved during the 1990s, the usefulness and popularity of laptops increased while prices went down. Several developments specific to laptops were quickly implemented in their design, improving their usability and performance compared to desktop computers. Among them were: * Panasonic - Toughbook,Let's Note(Available only in Japan) Among the first commercial IBM-compatible laptops were the IBM PC Convertible, introduced 1986, and the Toshiba T1000 and T1200, introduced 1987. Although limited floppy-based DOS machines (the operating system was stored in ROM), the Toshiba machines were small and light enough to be carried in a backpack, and could be run off lead-acid batteries. These also introduced the now-standard "resume" feature to DOS-based machines; the computer could be paused between sessions, without having to be restarted each time. Later PowerBooks introduced the first 256-color displays, first true touchpad, and first built-in Ethernet networking. Despite their name, using a laptop on one's lap can be both unpleasant (due to heat from the computer, particularly from its CPU) and possibly even dangerous to the laptop, as it may overheat. It is sometimes preferable to use a laptop on a desk.

Laptops generally cost more than a desktop computer of similar specification. Performance is usually lower than that of a comparable desktop because of the compromises necessary to keep weight and power consumption low. Some computer novices assume that laptops are constantly connected to the Internet, even (for example) while located on moving vehicles. This is a myth perpetuated by many commercials, where a person is shown using the company's website from a laptop with no wires plugged into it. This is possible via Wi-Fi or related technologies, but most laptops do not maintain a constant connection to the Internet. The growth of Metropolitan area networks may render a constant connection possible in the future. However, most modern mid-range laptops have integrated WiFi, so only require access to a wireless router to connect to the internet or a wireless hotspot. * iQon - Qompanion Another claim to be the "first laptop" was made by a novice programmer Thomas Kelly in 1982. While it was made to be used upon one's lap, it weighed 150 pounds, and therefore could not be deemed truly portable. * Sharp - Mebius