IBM 3270 is a family of block oriented display and printer computer terminals introduced by IBM in 1971 and normally used to communicate with IBM mainframes.
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17 Facts About IBM 3270
2.
IBM no longer manufactures 3270 terminals, but the IBM 3270 protocol is still commonly used via TN3270 clients, 3270 terminal emulation or web interfaces to access mainframe-based applications, which are sometimes referred to as green screen applications.
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3.
IBM 3270 series was designed to connect with mainframe computers, often at a remote location, using the technology then available in the early 1970s.
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4.
Remote IBM 3270 controllers are frequently multi-dropped, with multiple control units on a line.
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5.
Originally devices were equipped with BNC connectors, which later was replaced with special so-called DPC – Dual Purpose Connectors supporting the IBM 3270 Shielded twisted pair cabling system without the need for so-called red baluns.
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6.
Version of the IBM PC called the 3270 PC, released in October 1983, includes 3270 terminal emulation.
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7.
IBM 3270 initially announced four models, and later added a fifth model for use as a processor console.
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8.
IBM 3270 3193 Display Station is a high-resolution, portrait-type, monochrome, 380mm CRT image display providing up to letter or A4 size document display capabilities in addition to alphanumeric data.
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9.
IBM 3270 3192G, announced in 1987 was the successor to 3179G.
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10.
IBM 3270 3472G announced in 1989 was the successor to 3192G and featured five concurrent sessions, one of which could be graphics.
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11.
The IBM 3270 4224 is one of the IPDS capable dot matrix printers.
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12.
IBM 3270 introduced the 3174 Subsystem Control Unit in 1986, replacing the 3274 product line.
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13.
In 1989, IBM 3270 introduced a new range of 3174 models and changed the name from 3174 Subsystem Control Unit to 3174 Establishment Controller.
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14.
In 1994, IBM incorporated the functions of RPQ 8Q0935 into Configuration Support-C release 3, including the TN3270 client.
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15.
Telnet IBM 3270 can be used for either terminal or print connections.
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16.
IBM 3270 displays are available with a variety of keyboards and character sets.
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17.
Data sent to the IBM 3270 consist of commands, a Copy Control Character or Write Control Character if appropriate, a device address for copy, orders, character data and structured fields.
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