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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] |
Computer Terminal
A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing data from, a computer or a computing system. The teletype was an example of an early-day hard-copy terminal and predated the use of a computer screen by decades. Early terminals were inexpensive devices but very slow compared to punched cards or paper tape for input, yet as the technology improved and video displays were introduced, terminals pushed these older forms of interaction from the industry. A related development was time-sharing systems, which evolved in parallel and made up for any inefficiencies in the user's typing ability with the ability to support multiple users on the same machine, each at their own terminal or terminals. The function of a terminal is typically confined to transcription and input of data; a device with significant local, programmable data-processing capability may be called a "smart terminal" or fat client. A ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 2741 (I197205)
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), APL programming language. It was supplanted, starting in the mid-1970s, primarily by printing terminals using Daisy wheel printing, daisy wheel mechanisms. Design The IBM 2741 combines a ruggedized IBM Selectric typewriter, Selectric typewriter mechanism with Solid Logic Technology, IBM SLT electronics and an RS-232, RS-232-C serial interface. It operates at about 14.1 characters per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 3767
IBM 3767 Communication Terminal is a serial printer terminal that employed dot matrix print-head technology and, for the first time, the Synchronous Data Link Control (SDLC) communications protocol set under IBM's Systems Network Architecture (SNA). It was introduced in 1974 and was used widely during the late 1970s to 1990s, for attachment to IBM System/360 and System/370 mainframe computers and IBM System/7 as an alternative to a 2741 typewriter terminal. Needs for more efficient computer terminals During the late 1960 and 1970s, the computing environment expanded beyond the large computer rooms based on card input/output and started to allow data input and output terminals from remote locations. For such purposes, printer terminals such as the IBM 2741, using the traditional asynchronous serial communication (start-stop signaling), and display terminals such as IBM 2260 and IBM 3270, using the new communications protocol set (Binary Synchronous Communications or BSC), be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Copy
''Hard Copy'' is an American tabloid television show that ran in syndication from 1989 to 1999. ''Hard Copy'' was aggressive in its use of questionable material on television, including gratuitous violence. The original hosts of ''Hard Copy'' were Alan Frio and Terry Murphy. Frio left the series after the 1990–91 season and was succeeded by Barry Nolan in the fall of 1991. Nolan and Murphy would stay until after the 1997–98 season, when they both departed. In the show's final season, Kyle Kraska took over as the sole host. ''Hard Copy'' was produced and distributed by Paramount Domestic Television and, for much of its time on air, was often aired with its sister show, the Hollywood news program '' Entertainment Tonight'' as part of an hour-long programming block sold to local stations. Overview ''Hard Copy'' was a tabloid show that aired footage and news about celebrities and everyday people. Also featured were interviews with various newsmakers. 1992 Elton John lawsui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diablo 630
The Diablo 630 is a discontinued daisy wheel style computer printer sold by the Diablo Data Systems division of the Xerox Corporation beginning in 1980. The printer is capable of letter-quality printing; that is, its print quality is equivalent to the quality of an IBM Selectric typewriter or printer, the de facto quality standard of the time. Overview The printer is capable of this quality at a nominal speed of 30 characters per second (roughly twice the speed of the Selectric). Several technologies were introduced to enable this quality and speed: * The lightweight daisy wheel is rotated by a closed-loop servo and can be positioned rapidly and accurately. Because the wheel can turn in either direction, the next character is never more than 180° away from the previous character (and related characters are grouped together so the average "seek" is much less than 180°). * Like the "typeball" element on a Selectric, the daisy wheel can be easily changed, allowing for a wide va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xerox
Xerox Holdings Corporation (; also known simply as Xerox) is an American corporation that sells print and electronic document, digital document products and services in more than 160 countries. Xerox is headquartered in Norwalk, Connecticut (having moved from Stamford, Connecticut, in October 2007), though it is incorporated in New York (state), New York with its largest population of employees based around Rochester, New York, the area in which the company was founded. The company purchased Affiliated Computer Services for $6.4 billion in early 2010. As a large developed company, it is consistently placed in the list of Fortune 500 companies. On December 31, 2016, Xerox separated its business process service operations, essentially those operations acquired with the purchase of Affiliated Computer Services, into a new publicly traded company, Conduent. Xerox focuses on its document technology and document outsourcing business, and traded on the NYSE from 1961 to 2021, and the N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BCL Molecular
The BCL Molecular 18 was a range of 18-bit computer A computer is a machine that can be programmed to Execution (computing), carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as C ...s designed and manufactured in the UK from 1970 until the late 1980s.The machines were originally manufactured by Systemation Limited and sold by Business Mechanisation Limited. The two companies merged in 1968 to form Business Computers Limited - later a public limited company. Business Computers Ltd subsequently went into receivership in 1974. It was purchased from the receiver by Computer World Trade, maintenance of existing machines was by a subsidiary of CWT called CFM, manufacturing was passed to ABS Computer in the old BCL building in Portslade and sales rights were sold to a team from the old Singer Computers by 1976 trading as Business Computers (Systems) Ltd selling the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ALGOL 68
ALGOL 68 (short for ''Algorithmic Language 1968'') is an imperative programming language that was conceived as a successor to the ALGOL 60 programming language, designed with the goal of a much wider scope of application and more rigorously defined syntax and semantics. The complexity of the language's definition, which runs to several hundred pages filled with non-standard terminology, made compiler implementation difficult and it was said it had "no implementations and no users". This was only partly true; ALGOL 68 did find use in several niche markets, notably in the United Kingdom where it was popular on International Computers Limited (ICL) machines, and in teaching roles. Outside these fields, use was relatively limited. Nevertheless, the contributions of ALGOL 68 to the field of computer science have been deep, wide-ranging and enduring, although many of these contributions were only publicly identified when they had reappeared in subsequently developed programming lang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Administrative Terminal System
The IBM Administrative Terminal System, also known as ATS/360, provided text- and data-management tools for working with documents to users of IBM System/360 systems. An earlier version ran on an IBM 1440 or IBM 1460 Data Processing System and the IBM Service Bureau Corporation offered a proprietary version, Call/ATS, which ran on IBM 1440 systems or on IBM System/360 DOS systems. Text and data management ATS/360 provided comprehensive text- and data-management tools including entry, temporary storage, permanent storage, formatting, printing, archiving and retrieving. Utilizing ATS/360, a large business could maintain all its end-user documents, revising and printing new versions of these as required. Also using ATS/360, a large law practice could maintain its client files, including witness statements and depositions, and several landmark legal decisions were significantly assisted using ATS/360. Device support Initially, ATS/360 supported only IBM 2741 typewriter terminals. Late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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