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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 keyboard for IBM PC-compatible computers is standardized. However, during the more than 30 years of PC architecture being frequently updated, many keyboard layout variations have been developed. A well-known class of IBM PC keyboards is the Model M.
Products, services, and subsidiaries have been offered from International Business Machines (IBM) Corporation and its predecessor corporations since the 1890s. [1] This list comprises those offerings and is eclectic; it includes, for example, the AN/FSQ-7, which was not a product in the sense of offered for sale, but was a product in the sense of manufactured—produced by the labor of IBM.
John Karidis was best known for designing the butterfly keyboard of the IBM ThinkPad 701. The unusual patented design [4] had two jigsaw puzzle like interlocking pieces which were tucked in the laptop when the display lid was closed. Then, the keyboard would fold out horizontally to make a wider keyboard when the display lid was opened. [5]
Butterfly keyboard may refer to keyboards used on specific laptop computer models: IBM ThinkPad 701; MacBook Pro; MacBook Air This page was last edited on 2 ...
The most common variant is the IBM Enhanced Keyboard identified by IBM assembly part number 1391401, the U.S. English layout keyboard bundled with the IBM Personal System/2. Until around 1993, most Model Ms included a coiled, detachable cable, with either an AT (pre-1987) or PS/2 connector, in 5- and 10-foot lengths (1.5 and 3 meters).
The IBM 701 was the first computer in the IBM 700/7000 series, which were IBM’s high-end computers until the arrival of the IBM System/360 in 1964. [ 5 ] The business-oriented sibling of the 701 was the IBM 702 and a lower-cost general-purpose sibling was the IBM 650 , which gained fame as the first mass-produced computer.
The Model F was a series of computer keyboards produced mainly from 1981–1985 and in reduced volume until 1994 by IBM and later Lexmark. [1] Its mechanical-key design consisted of a buckling spring over a capacitive PCB, similar to the later Model M keyboard that used a membrane in place of the PCB.