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2. IBM ThinkPad 701 - Wikipedia

   en.wikipedia.org/wiki/IBM_ThinkPad_701

   The IBM ThinkPad 701 is a subnotebook in the ThinkPad line by IBM. The 701 is colloquially known as the Butterfly due to its sliding keyboard, which was designed by John Karidis. It was developed from 1993 and sold from March 1995 until later that year and priced between $1,499 and $3,299. The 701 was the most sold laptop in 1995 and has ...

3. Computer keyboard - Wikipedia

   en.wikipedia.org/wiki/Computer_keyboard

   A computer keyboard is a peripheral input device modeled after the typewriter keyboard which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Replacing early punched cards and paper tape technology, interaction via teleprinter -style keyboards have been the main input method for computers since the ...

4. Typewriter - Wikipedia

   en.wikipedia.org/wiki/Typewriter

   The QWERTY keyboard layout, developed for typewriters in the 1870s, remains the de facto standard for English-language computer keyboards. The origins of this layout still need to be clarified. [5] Similar typewriter keyboards, with layouts optimised for other languages and orthographies, emerged soon afterward, and their layouts have also ...

5. Compaq Portable - Wikipedia

   en.wikipedia.org/wiki/Compaq_Portable

   The Compaq Portable was announced in November 1982 and first shipped in March 1983, [11] priced at US$2,995 (equivalent to $9,200 in 2023) with a single half-height 5+1⁄4 " 360 KB diskette drive or US$3,590 for dual, full-height diskette drives. The 28 lb (13 kg) [12] Compaq Portable folded up into a luggable case the size of a portable ...

6. IBM 5100 - Wikipedia

   en.wikipedia.org/wiki/IBM_5100

   IBM 5100. The IBM 5100 Portable Computer is one of the first portable computers, [1] introduced in September 1975, six years before the IBM Personal Computer, and eight before the first successful IBM compatible portable computer, the Compaq Portable. It was the evolution of a prototype called the SCAMP (Special Computer APL Machine Portable ...

7. Keyboard technology - Wikipedia

   en.wikipedia.org/wiki/Keyboard_technology

   The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way. The keyboard driver also tracks the shift, alt and control state of the keyboard. Keyboard switch matrix