ASCII, an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Because of technical limitations of computer systems at the time it was invented, ASCII has just 128 code points, of which only 95 are printable characters, which severely limited its scope. Modern computer systems have evolved to use Unicode, which has millions of code points, but the first 128 of these are the same as the ASCII set.
A typewriter is a mechanical or electromechanical machine for typing characters. Typically, a typewriter has an array of keys, and each one causes a different single character to be produced on paper by striking an inked ribbon selectively against the paper with a type element. Thereby, the machine produces a legible written document composed of ink and paper. By the end of the 19th century, a person who used such a device was also referred to as a typewriter.
Dot matrix printing, sometimes called impact matrix printing, is a computer printing process in which ink is applied to a surface using a relatively low-resolution dot matrix for layout. Dot matrix printers are a type of impact printer that prints using a fixed number of pins or wires and typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper. They were also known as serial dot matrix printers. Unlike typewriters or line printers that use a similar print mechanism, a dot matrix printer can print arbitrary patterns and not just specific characters.
Daisy wheel printing is an impact printing technology invented in 1970 by Andrew Gabor at Diablo Data Systems. It uses interchangeable pre-formed type elements, each with typically 96 glyphs, to generate high-quality output comparable to premium typewriters such as the IBM Selectric, but two to three times faster. Daisy wheel printing was used in electronic typewriters, word processors and computers from 1972. The daisy wheel is so named because of its resemblance to the daisy flower.
The IBM Electric were an early series of electric typewriters that IBM manufactured, starting in the mid-1930s. They used the conventional moving carriage and typebar mechanism, as opposed to the fixed carriage and type ball used in the IBM Selectric, introduced in 1961. After 1944, each model came in both "Standard" and "Executive" versions, the latter featuring proportional spacing.
Futura is a geometric sans-serif typeface designed by Paul Renner and released in 1927. It was designed as a contribution on the New Frankfurt-project. It is based on geometric shapes, especially the circle, similar in spirit to the Bauhaus design style of the period. It was developed as a typeface by the Bauer Type Foundry, in competition with Ludwig & Mayer's seminal Erbar typeface of 1926.
Univers is a large sans-serif typeface family designed by Adrian Frutiger and released by his employer Deberny & Peignot in 1957. Classified as a neo-grotesque sans-serif, one based on the model of nineteenth-century German typefaces such as Akzidenz-Grotesk, it was notable for its availability from the moment of its launch in a comprehensive range of weights and widths. The original marketing for Univers deliberately referenced the periodic table to emphasise its scope.
The IBM 1403 line printer was introduced as part of the IBM 1401 computer in 1959 and had an especially long life in the IBM product line.
The Underwood Typewriter Company was an American manufacturer of typewriters headquartered in New York City, with manufacturing facilities in Hartford, Connecticut. Underwood produced what is considered the first widely successful, modern typewriter. By 1939, Underwood had produced five million machines.
The Olivetti Lettera 22 is a portable mechanical typewriter designed by Marcello Nizzoli in 1949 or, according to the company's current owner Telecom Italia, 1950. This typewriter was very popular in Italy, receiving the Compasso d'oro prize in 1954. In 1959 the Illinois Institute of Technology chose the Lettera 22 as the best designed product of the last 100 years.
The Blickensderfer typewriter was invented by George Canfield Blickensderfer (1850–1917) and patented on April 12, 1892. Blickensderfer was a nephew of John Celivergos Zachos, the inventor of the stenotype. Two models, Model 1 and Model 5, were unveiled to the public at the 1893 World's Columbian Exposition in Chicago. The Model 5 was a stripped-down version of the bigger, more complex Model 1. These machines were intended to compete with larger Remington, Hammond and Yost typewriters, and were the first truly portable, full-keyboard typewriters. The design also enabled the typist to see the typed work, at a time when most typewriters were understrike machines that concealed the writing. When Blickensderfer unveiled his small Model 5, its compactness and novel features attracted huge crowds and many orders.
The Royal Typewriter Company is a manufacturer of typewriters founded in January 1904. It was headquartered in New York City with its factory in Hartford, Connecticut.
Smith Corona is an American manufacturer of thermal labels, direct thermal labels, and thermal ribbons used in warehouses for primarily barcode labels.
Olivetti is an Italian manufacturer of computers, tablets, smartphones, printers, calculators, and fax machines. It was founded as a typewriter manufacturer by Camillo Olivetti in 1908 in the Turin commune of Ivrea, Italy.
The IBM Selectric was a highly successful line of electric typewriters introduced by IBM on 31 July 1961.
The Sholes and Glidden typewriter was the first commercially successful typewriter. Principally designed by the American inventor Christopher Latham Sholes, it was developed with the assistance of fellow printer Samuel W. Soule and amateur mechanic Carlos S. Glidden. Work began in 1867, but Soule left the enterprise shortly thereafter, replaced by James Densmore, who provided financial backing and the driving force behind the machine's continued development. After several short-lived attempts to manufacture the device, the machine was acquired by E. Remington and Sons in early 1873. An arms manufacturer seeking to diversify, Remington further refined the typewriter before finally placing it on the market on July 1, 1874.
The Royal Quiet Deluxe was a portable typewriter, made by the Royal Typewriter Company, from 1939 until 1959. The first-generation Quiet Deluxe was the first Royal to feature Magic Margin. The first generation of Royal Quiet Deluxe was manufactured from 1939 until 1948, with a gap in production due to World War II. It was the typewriter of choice for Ernest Hemingway.
The Olivetti Valentine is a portable, manual typewriter manufactured and marketed by the Italian company, Olivetti, that combined the company's Lettera 32 internal typewriter mechanicals with signature red, glossy plastic bodywork and matching plastic case. Designed in 1968 by Olivetti's Austrian-born consultant, Ettore Sottsass, assisted by Perry A. King and Albert Leclerc – it was introduced in 1969 and was one of the earliest and most iconic plastic-bodied typewriters.
Silver Seiko Ltd. is a Japanese company founded in 1952, widely known for its knitting machines and typewriters. The company, last formally headquartered in Shinjuku, Tokyo until its 2011 demise, is unrelated to the Seiko Group.
