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History of Laptops

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Before laptop/notebook computers were technically feasible, similar ideas had been proposed, most notably Alan Kay’s Dynabook concept,  developed at Xerox PARC in the early 1970s. What was probably the first portable computer was the Xerox NoteTaker, again developed at Xerox PARC, in 1976. However, only 10 prototypes were built.

Osborne 1

An opened Osborne 1 computer, ready for use. The keyboard sits on the inside of the lid.
The first commercially available portable computer was the Osborne 1 in 1981, which used the CP/M operating system. Although it was large and heavy compared to today’s laptops, with a tiny 5″ CRT monitor, it had a near-revolutionary impact on business, as professionals were able to take their computer and data with them for the first time. This and other “luggables” were inspired by what was probably the first portable computer, the Xerox NoteTaker. The Osborne was about the size of a portable sewing machine, and more importantly, could be carried on commercial aircraft. However, it was not possible to run the Osborne on batteries.[citation needed]
Bondwell 2

Although it wasn’t released until 1985, well after the decline of CP/M as a major operating system, the Bondwell 2 is one of only a handful of CP/M laptops. It used a Z-80 CPU running at 4 MHz, had 64 K RAM and, unusual for a CP/M machine, a 3.5″ floppy disk drive built in. It had a 80×25 character-based LCD mounted on a hinge similar to modern laptops, one of the first computers to use this form factor.

Other CP/M laptops

The other CP/M laptops were the Epson PX-4 (or HX-40) and PX-8 (Geneva), The NEC PC-8401A, and the NEC PC-8500. These four units, however, utilized modified CP/M systems in ROM, and did not come standard with any floppy or hard disks.

Compaq Portable

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 legal IBM clone (IBM’s own later Portable Computer, which arrived in 1984, was notably less IBM PC-compatible than the Compaq[citation needed]

Epson HX-20

Another significant machine announced in 1981, although first sold widely in 1983, was the Epson HX-20. A simple handheld computer, it featured a full-transit 68-key keyboard, rechargeable nickel-cadmium batteries, a small (120×32-pixel) dot-matrix LCD display 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).

GRiD Compass

However, arguably the first true laptop was the GRiD Compass 1101, designed by Bill Moggridge in 1979-1980, and released in 1982. Enclosed in a magnesium case, it introduced the now familiar clamshell design, in which the flat display folded shut against the keyboard. The computer could be run from batteries, and was equipped with a 320×200-pixel electroluminescent display and 384 kilobyte bubble memory. It was not IBM-compatible, and its high price (US$8,000–10,000) limited it to specialized applications. However, it was used heavily by the U.S. military, and by NASA on the Space Shuttle during the 1980s. The GRiD’s manufacturer subsequently earned significant returns on its patent rights as its innovations became commonplace. GRiD Systems Corp. was later bought by the Tandy (now RadioShack) Corporation.

Courtesy: Wikipedia

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Where to Buy or Sell Used Laptops and Notebooks

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Looking to sell your used laptop or used notebook for a good price, you can look at some of the following online places that buys used laptops, notebooks and computers. Some companies even buy broken laptops and computers as they salvage undamaged components in the laptop for refurbishing other laptops. You can buy a used laptop or used notebook or computer from the same places, as they have different makes and models of computers, laptops and notebooks, either new or used.
BBTronics.com has a comprehensive and easy to navigate web site for the selling of used as well as broken Dell laptops at top value. Sellers of their laptops, computers and notebooks have a choice of payment method, either via PayPal, Money Order or Check.
AliExpress.com buys and sells any type of used laptop, used notebook, used computer, tablets and more. Full descriptions of all their products are displayed, as well as the status of the used laptop or other products as well as pictures are included.
Ebay is another very popular spot to buy and sell almost anything, including your used laptop or if you are looking to buy a used laptop, notebook or computer.
TokyoPC.com buys and sells any make or model used laptop, used notebook, used tablet or used computer for very reasonable prices.
UsedLaptops.com buys and sells quality used laptop and used notebook computers to businesses and individuals. The advantage a buyer has here is that every unit he or she buys second-hand is that it gets thoroughly tested. The same goes for sellers as they cannot sell their used laptop for examples and state it is good condition, when indeed it is not.
Dfsdirectsales.com comes highly recommended if you are looking for a used Dell laptop, notebook or computer as their products come with a 30 day return policy. Sellers on the other hand will not be able to receive top prices for their used laptops if they want a good price and the product may be damaged. They do however buy and sell as-is used products, refurbished and more.