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Selectric
The IBM Selectric typewriter was a highly successful line of electric typewriters introduced by IBM on 31 July 1961. Instead of the "basket" of individual typebars that swung up to strike the ribbon and page in a typical typewriter of the period, the Selectric had an "element" (frequently called a "typeball", or less formally, a "golf ball") that rotated and pivoted to the correct position before striking the paper. The element could be easily interchanged to use different fonts within the same document typed on the same typewriter, resurrecting a capability which had been pioneered by typewriters such as the Hammond and Blickensderfer in the late 19th century. The Selectric also replaced the traditional typewriter's horizontally-moving carriage with a roller (platen) that turned to advance the paper vertically, while the typeball and ribbon mechanism moved horizontally across the paper. The Selectric mechanism was notable for using internal mechanical binary coding and two me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selectric II
The IBM Selectric typewriter was a highly successful line of electric typewriters introduced by IBM on 31 July 1961. Instead of the "basket" of individual typebars that swung up to strike the ribbon and page in a typical typewriter of the period, the Selectric had an "element" (frequently called a "typeball", or less formally, a "golf ball") that rotated and pivoted to the correct position before striking the paper. The element could be easily interchanged to use different fonts within the same document typed on the same typewriter, resurrecting a capability which had been pioneered by typewriters such as the Hammond and Blickensderfer in the late 19th century. The Selectric also replaced the traditional typewriter's horizontally-moving carriage with a roller (platen) that turned to advance the paper vertically, while the typeball and ribbon mechanism moved horizontally across the paper. The Selectric mechanism was notable for using internal mechanical binary coding and two me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Wheelwriter
The IBM Selectric typewriter was a highly successful line of electric typewriters introduced by IBM on 31 July 1961. Instead of the "basket" of individual typebars that swung up to strike the ribbon and page in a typical typewriter of the period, the Selectric had an "element" (frequently called a "typeball", or less formally, a "golf ball") that rotated and pivoted to the correct position before striking the paper. The element could be easily interchanged to use different fonts within the same document typed on the same typewriter, resurrecting a capability which had been pioneered by typewriters such as the Hammond and Blickensderfer in the late 19th century. The Selectric also replaced the traditional typewriter's horizontally-moving carriage with a roller (platen) that turned to advance the paper vertically, while the typeball and ribbon mechanism moved horizontally across the paper. The Selectric mechanism was notable for using internal mechanical binary coding and two me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Selectric Typewriter
The IBM Selectric typewriter was a highly successful line of electric typewriters introduced by IBM on 31 July 1961. Instead of the "basket" of individual typebars that swung up to strike the ribbon and page in a typical typewriter of the period, the Selectric had an "element" (frequently called a "typeball", or less formally, a "golf ball") that rotated and pivoted to the correct position before striking the paper. The element could be easily interchanged to use different fonts within the same document typed on the same typewriter, resurrecting a capability which had been pioneered by typewriters such as the Hammond and Blickensderfer in the late 19th century. The Selectric also replaced the traditional typewriter's horizontally-moving carriage with a roller (platen) that turned to advance the paper vertically, while the typeball and ribbon mechanism moved horizontally across the paper. The Selectric mechanism was notable for using internal mechanical binary coding and two me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Selectric Composer (2)
The IBM Selectric typewriter was a highly successful line of electric typewriters introduced by IBM on 31 July 1961. Instead of the "basket" of individual typebars that swung up to strike the ribbon and page in a typical typewriter of the period, the Selectric had an "element" (frequently called a "typeball", or less formally, a "golf ball") that rotated and pivoted to the correct position before striking the paper. The element could be easily interchanged to use different fonts within the same document typed on the same typewriter, resurrecting a capability which had been pioneered by typewriters such as the Hammond and Blickensderfer in the late 19th century. The Selectric also replaced the traditional typewriter's horizontally-moving carriage with a roller (platen) that turned to advance the paper vertically, while the typeball and ribbon mechanism moved horizontally across the paper. The Selectric mechanism was notable for using internal mechanical binary coding and two me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Typewriter
A typewriter is a machine, mechanical or electromechanical machine for typing characters. Typically, a typewriter has an array of Button (control), 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 Sort (typesetting), type element. At the end of the nineteenth century, the term 'typewriter' was also applied to a ''person'' who used such a device. The first commercial typewriters were introduced in 1874, but did not become common in offices until after the mid-1880s. The typewriter quickly became an indispensable tool for practically all writing other than personal handwritten correspondence. It was widely used by professional writers, in offices, business correspondence in private homes, and by students preparing written assignments. Typewriters were a standard fixture in most offices up to the 1980s. Thereafter, they began to be largely supplanted by personal computers running w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Typewriter
A typewriter is a machine, mechanical or electromechanical machine for typing characters. Typically, a typewriter has an array of Button (control), 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 Sort (typesetting), type element. At the end of the nineteenth century, the term 'typewriter' was also applied to a ''person'' who used such a device. The first commercial typewriters were introduced in 1874, but did not become common in offices until after the mid-1880s. The typewriter quickly became an indispensable tool for practically all writing other than personal handwritten correspondence. It was widely used by professional writers, in offices, business correspondence in private homes, and by students preparing written assignments. Typewriters were a standard fixture in most offices up to the 1980s. Thereafter, they began to be largely supplanted by personal computers running w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM MT/ST
The IBM MT/ST (Magnetic Tape/Selectric Typewriter, and known in Europe as MT72) was a model of the IBM Selectric typewriter, built into its own desk, integrated with magnetic tape recording and playback facilities, located in an attached enclosure, with controls and a bank of relays. It was released by IBM in 1964. It recorded text typed on 1/2" magnetic tape, approximately 25 kilobytes per tape cassette, and allowed editing and re-recording during playback. It was the first system marketed as a word processor. Most models had two tape drives, which greatly facilitated revision and enabled features such as mail merge. An add-on module added a third tape station, to record the combined output of playback from the two stations. The MT/ST automated word wrap, but it had no screen, automated hyphenation (soft hyphens were available), or concept of the page; pages had to be divided and numbered by the human operator during playback. Instruction manuals taught the operator the importan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 2741
The IBM 2741 is a printing computer terminal that was introduced in 1965. Compared to the teletypewriter machines that were commonly used as printing terminals at the time, the 2741 offers 50% higher speed, much higher quality printing, quieter operation, interchangeable type fonts, and both upper and lower case letters. It was used primarily with the IBM System/360 series of computers, but was used with other IBM and non-IBM systems where its combination of higher speed and letter-quality output was desirable. It was influential in the development and popularity of the APL programming language. It was supplanted, starting in the mid-1970s, primarily by printing terminals using daisy wheel mechanisms. Design The IBM 2741 combines a ruggedized Selectric typewriter mechanism with IBM SLT electronics and an RS-232-C serial interface. It operates at about 14.1 characters per second with a data rate of 134.5 bits/second (one start bit, six data bits, an odd parity bit, and one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eliot Noyes
Eliot Fette Noyes (August 12, 1910 – July 18, 1977) was an American architect and industrial designer, who worked on projects for IBM, most notably the IBM Selectric typewriter and the IBM Aerospace Research Center in Los Angeles, California. Noyes was also a pioneer in development of comprehensive corporate-wide design programs that integrated design strategy and business strategy. Noyes worked on corporate imagery for IBM, Mobil Oil, Cummins Engine and Westinghouse. Early life Eliot Noyes was born in Boston, Massachusetts. Shortly after his birth, Noyes moved to Colorado where he resided until age seven. At this point, Noyes and his family moved to Cambridge, Massachusetts. Noyes’ father taught English at Harvard University and his mother was an accomplished pianist. He was not always set on architecture. As a teen, he seriously contemplated becoming a painter; however by age 19 he had his mind set on architecture. He first enrolled at Harvard University in 1932 to obta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Electric Typewriter
The IBM Electric typewriters were a 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. History The IBM Electromatic typewriter was the first electric typewriter to enjoy long-term commercial success. Unlike the later IBM Selectric typewriter, this typewriter model used a conventional moving carriage and typebar mechanism. The history of the Electromatic goes back to 1924, when the North East Electric Company received patent rights for the power roller from James Smathers. At that time, the company was selling electric motors, and wanted to get into the typewriter business. They reached an arrangement with Remington, securing a contract for 2,500 machines in 1925. N. E. Electric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital-to-analog Converter
In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal. An analog-to-digital converter (ADC) performs the reverse function. There are several DAC architectures; the suitability of a DAC for a particular application is determined by figures of merit including: resolution, maximum sampling frequency and others. Digital-to-analog conversion can degrade a signal, so a DAC should be specified that has insignificant errors in terms of the application. DACs are commonly used in music players to convert digital data streams into analog audio signals. They are also used in televisions and mobile phones to convert digital video data into analog video signals. These two applications use DACs at opposite ends of the frequency/resolution trade-off. The audio DAC is a low-frequency, high-resolution type while the video DAC is a high-frequency low- to medium-resolution type. Due to the complexity a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blickensderfer Typewriter
The Blickensderfer Typewriter was invented by George Canfield Blickensderfer (1850–1917) and patented on August 4, 1891. Blickensderfer was the nephew of John Celivergos Zachos the inventor of the stenotype. Two models were initially unveiled to the public at the 1893 World's Columbian Exposition in Chicago, the Model 1 and the Model 5. His machines were originally 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 under strike machines that concealed the writing. When Blickensderfer unveiled his small Model 5 at the 1893 World's Fair, and a stripped-down version of his larger more complex Model 1 machine, these revolutionary features attracted huge crowds and many orders. History The Blickensderfer typewriters were initially manufactured in a rented factory on Garden Street in Stamford, Connecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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