HistoryEditLook up device in Wiktionary, the totally free dictionary.
The etymology of words is disputed. The word first appears as reference to an 18th-century device in glassmaking that was developed as a springtime pontil.  As stated in the glass dictionary released by the Corning Museum of Glass, a gadget is a metal pole with a spring clip that grips the foot of a vessel therefore avoids making use of a pontil. Gizmos were first made use of in the late 18th century.  According to the Oxford English Dictionary, there is unscientific (not always real) evidence for making use of “gizmo” as a placeholder name for a technical item whose accurate name one can’t remember since the 1850s; with Robert Brown’s 1886 publication Spunyarn and Spindrift, A sailor boy’s log of a voyage out as well as home in a China tea-clipper consisting of the earliest known use in print. 
A commonly distributed story holds that the word gadget was “developed” when Gaget, Gauthier & Cie, the company behind the repoussé construction of the Statue of Liberty ( 1886 ), made a small version of the monolith as well as named it after their company; however this opposes the evidence that words was already made use of prior to in maritime circles, and the reality that it did not ended up being preferred, a minimum of in the USA, until after World War I.  Other resources cite a derivation from the French gâchette which has actually been applied to numerous pieces of a firing mechanism, or the French gagée, a little tool or device. 
The October 1918 issue of Queries and also notes contains a multi-article entrance on the word “gizmo” (12 S. iv. 187). H. Tapley-Soper of The City Library, Exeter, writes:
A discussion arose at the Plymouth meeting of the Devonshire Association in 1916 when it was suggested that this word should be tape-recorded in the list of neighborhood verbal provincialisms. Numerous participants dissented from its incorporation on the ground that it is in common usage throughout the country; as well as a marine officer that was present said that it has for years been a preferred expression in the service for a tool or apply, the specific name of which is unidentified or has for the minute been forgotten. I have also often heard it used by motor-cycle friends to the collection of fitments to be seen on electric motor cycles. ‘His handle-bars are smothered in gizmos’ refers to such things as speedometers, mirrors, levers, badges, mascots, & c., connected to the steering deals with. The ‘jigger’ or short-rest used in billiards is likewise usually called a ‘device’; as well as the name has actually been used by local platelayers to the ‘scale’ used to check the precision of their work. To obtain from present-day Army slang, ‘device’ is applied to ‘any kind of old thing.’ 
The use of the term in armed forces parlance prolonged past the navy. In the book “Above the Battle” by Vivian Drake, published in 1918 by D. Appleton & Co., of New York and London, being the memoirs of a pilot in the British Royal Flying Corps, there is the list below passage: “Our apathy was sometimes eased by brand-new gizmos– “gizmo” is the Flying Corps jargon for innovation!
By the 2nd half of the twentieth century, the term “gadget” had handled the undertones of compactness and flexibility. In the 1965 essay “The Great Gizmo” (a term utilized interchangeably with “gizmo” throughout the essay), the building and also layout critic Reyner Banham specifies the thing as:
The minimum of abilities is called for in its installment as well as usage, and it is independent of any social or physical framework past that by which it may be purchased from catalogue as well as supplied to its potential user. A class of slaves to human needs, these clip-on gadgets, these portable gizmos, have coloured American thought and also action far more deeply—- I suspect—- than is generally understood.
The initial atomic bomb was nicknamed the gadget by the Scientists the Manhattan Project, evaluated at the Trinity website.
The earliest  recorded usage of the term gadget in context of soft.