A portable personal computer, a laptop (also known as a notebook computer or notebook) can weigh anything from one to three kilograms (2.2 to 6.61 pounds) depending on its size, materials, and other features.
Although "laptop" and "notebook" are sometimes used interchangeably, "laptop" was first used in 1983 to describe the Gavilan SC. The term "notebook computer" was coined later to distinguish smaller machines like the Compaq LTE series of 1989, which were around the size of an A4 paper sheet from earlier laptops. The terms "laptop" and "notebook" are often misused; most laptops are not lap-friendly (because of heat and other concerns), and neither is it the size of an A4 sheet of paper. Although the Macintosh Portable and various Zenith TurbosPort models were occasionally called "laptops," they did not fit the size and weight requirements to be properly classified as such.
Most 144hz laptop require only one battery to function, while some can be powered by an external AC/DC adaptor that doubles as a battery charger.
Touchpad-equipped laptop by Acer
For the same money, you may get the same functionality out of a desktop PC or a laptop, albeit the latter is often more powerful. The components they employ are comparable to those found in desktop computers, and they serve the same purposes, but they are scaled down and designed for portability and low power usage. Most laptops employ a variety of RAM modules, and their displays are typically LC (for instance, SO-DIMM instead of the larger DIMMs). Although they often come with a keyboard, touchpad (also known as a trackpad), and pointing stick as built-in input options, users can often attach an external keyboard and mouse.
Laptop computers can be broken down into several distinct categories, including
Ultraportables
Typically, a laptop's screen size and weight shouldn't exceed 12 inches on the diagonal or 1.7 kilograms. Small, lightweight laptops like these cater primarily to business travelers. The processors and graphics chips in ultraportables are frequently very expensive and power-efficient.
Thin-and-lights
- Typically, the weight of a laptop is between 1.8 and 2.8 kg, and the diagonal screen size is between 12 and 14 inches.
- Mobile computing devices of moderate size.
- These typically have 15-15.4-inch diagonal screens and weigh between 3 and 3.5 kilograms. Although their length and width are often defined by the size of the screen, they typically sacrifice some computer capability in exchange for smaller dimensions and longer battery life.
Substitutes for traditional desktop PCs
Laptops with strong components and a large screen, often 15 inches or more in size, are intended to be used mostly in a fixed position and rarely carried. Because their hardware isn't optimized for power economy, desktop replacements typically have a battery life of fewer than three hours.
History
Alan Kay's Dynabook concept, created at Xerox PARC in the early 1970s, was the most notable example of a similar notion offered before laptop/notebook computers were technically possible.
With its CP/M operating system, the Osborne 1 was the first commercially available portable computer. The business was nearly revolutionized when professionals for the first time could take their computer and data with them, although it was bulky and heavy compared to modern laptops and had a tiny CRT monitor. The Xerox NoteTaker, also created at Xerox PARC in 1976, is often regarded as the first portable computer; nevertheless, only ten prototypes were ever produced. Importantly, the Osborne was roughly the size of a portable sewing machine and could be transported by a commercial airliner. The Osborne, however, could not be powered by batteries; it had to be plugged in.
A more long-lasting success was Compaq's first product, the Compaq Portable, released in 1983, long after the IBM Personal Computer had become the industry standard. It ran MS-DOS and was the first true IBM clone, but it was hardly more portable than the Osborne machines and also needed AC power to function (IBM's own later Portable Computer, which arrived in 1984, was notably less IBM PC-compatible than the Compaq[citation needed]).
The Epson HX-20 was another notable machine released that year, though it didn't see widespread distribution until 1983. The basic features of this portable computer included a full-transit 68-key keyboard, rechargeable nickel-cadmium batteries, a small (120 x 32 pixel) dot-matrix LCD with 4 lines of text, 20 characters per line text mode, a 24-column dot matrix printer, a Microsoft BASIC interpreter, and 16 kB of RAM (expandable to 32 kB).
It is generally agreed that Bill Moggridge's GRiD Compass 1101 (developed in 1979â80) and originally marketed in 1982 was the first genuine laptop. Its magnesium enclosure debuted the clamshell design used by laptops like the IBM ThinkPad, in which the screen folds over and rests against the keyboard. The computer had a 320200-pixel plasma display and 384 kilobytes of bubble memory, and it could be powered by batteries. In addition to being incompatible with IBM systems, its exorbitant price tag of US$10,000 meant that it could only be used for niche purposes. On the other hand, the U.S. military and NASA employed it extensively on the Space Shuttle in the '80s. As GRiD's innovations became the norm, the company that made it reaped substantial profits from its patents. Tandy eventually purchased GRiD Systems Corp. (RadioShack).
The Sharp PC-5000 and the Gavilan SC were two additional notable early laptops, both of which were announced in 1983 but didn't go on sale until 1984. The Gavilan is historically significant as the first laptop computer. Above the keyboard, on an innovative new panel, was a touchpad-like pointing device. The Gavilan and the Sharp were both clamshell-style computers, like the GRiD Compass, but they were only partially IBM-compatible and instead ran their own proprietary systems software. There was an LCD screen on each, and you could attach a printer if you wanted to.
Kyocera Kyotronic 85, which heavily borrowed from the Epson HX-20's design, was released in 1983 and became the best-selling early laptop. Although it was hard to sell in Japan at first, Tandy Corporation, Olivetti, and NEC all realized its potential and licensed it, marketing it as the TRS-80 Model 100 line (or Tandy 100), the Olivetti M-10, and the NEC PC-8201. [2] The batteries required to power the devices were the regular AA variety. Bill Gates is widely credited with writing at least some of the software included on the Tandy, which includes a BASIC interpreter, text editor, and terminal program. The computer didn't have a clamshell design, but it did include a full-travel keyboard and an 8-by-40-character LCD that could be tilted.
It was an extremely mobile communications hub due to its built-in modem. The model became popular among journalists because of its inexpensive price (as little as US$ 300), portability, long battery life (and ease of replacement), reliability (it had no moving parts), and low cost. Its dimensions were 30 by 21.5 by 4.5 cm (12 by 8.5 by 1.75 inches), and it weighed less than 2 kg. A 3 MHz processor and 8 kilobytes of RAM (expandable to 24 kilobytes) were the base configuration. The computer was roughly the size of a paper notebook, but the word "portable" hadn't yet entered common usage.
The IBM PC Convertible, released in 1986, and the T1000 and T1200, released by Toshiba in 1987, were among the first commercially available IBM-compatible laptops. While the Toshiba models were small and lightweight enough to be carried in a backpack and run on lead-acid batteries, they were limited floppy-based DOS machines with the operating system contained in read-only memory. In addition, these were the first DOS-based computers to include the now-standard "resume" function, which allowed the computer to be put to sleep between sessions rather than rebooted.
The RFP issued by the U.S. Air Force in 1987 was a major factor in the widespread adoption of laptop computers. More than 200,000 laptops could be purchased as a result of this contract. Many major PC manufacturers, including IBM, Toshiba, Compaq, NEC, and Zenith Data Systems (ZDS), were vying for the contract at the time, thus they all hurried to release laptops. This contract was given to ZDS for the SupersPort series after the company had already secured a landmark deal with the IRS for the Z-171. The original SupersPort series had a NiCD battery pack, an STN LCD screen in blue and white with backlighting, an Intel 8086 processor, and two floppy disc drives. There was an Intel 80286 processor and a 20MB hard drive in the later variants. ZDS grew rapidly in the years 1987 and 1988 as a result of this contract, eventually becoming the world's largest provider of laptops.
Laptops were co-created by ZDS and Tottori Sanyo. Importantly, this partnership was the first of its kind between a well-known company and an Asian original equipment manufacturer (Original Equipment Manufacturer). Back then, companies like Compaq, IBM, Toshiba, NEC, etc., would develop and produce their computers. Yet, other partnerships, such as that between Compaq and Citizen, quickly emerged as the ZDS offering proved successful. At the time, most companies choose to get their components from Japan because of the high quality of their engineering and production, as well as the favorable exchange rate (now around 130 yen to $1).
Some of the most prominent names in this industry where original equipment manufacturers (OEMs) like Sanyo, Tottori Sanyo, Citizen, and Casio. The supply base shifted rapidly from Japan to Taiwan in the mid-1990s due to a combination of factors, including the declining value of the dollar and the increasing competitiveness of Taiwanese original equipment manufacturers including Acer, Quanta, Compal, Twinhead, and Chicony. In addition, companies like Gateway, Dell, and Micron, who relied less on their in-house engineering to succeed, shot to the forefront. From 1995 onward, the position of Taiwanese OEMs as the core of PC manufacturing was considerably aided by the rise of collaborations like Dell and Compal and Gateway and Quanta.
