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which had keys, indicator lights and switches. A plastic overlay label could be placed over the function keyboard. Punches on the top edge of the overlay could be sensed by the computer so the keys, lights and switches could be reprogrammed simply by changing overlays. The 2250s CRT measured 21"
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was announced with System/360 in 1964. A complete 2250 III system with controller cost around $ 280,000 in 1970, though up to 4 displays could share a single controller, reducing the cost per display by up to 40%.
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minicomputer via the storage access channel (SAC). The 1130 could run either as a standalone processor or as a front-end processor connected to a remote System/360.
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could be attached to the 2250 to provide 8½ by 11 inch hard copy of the display contents under operator control.
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feature on all models provided predefined fonts of 63 characters to simplify display of alphanumeric information.
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Model 2 – attached via a 2840-1 control unit. A 2840 could attach up to four 2250s and provided buffering and a
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could be displayed, although fonts were generally extremely simplified for performance reasons. An optional
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could be attached to a 2840 control unit providing for output or input/output to photographic negative.
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IBM System/360 Component
Description IBM 2250 Display Unit Model 3 IBM 2840 Display Control Model 2
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IBM System/360 Component
Description IBM 2250 Display Unit Model 2 IBM 2840 Display Control Model 1
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The
History of Visual Magic in Computers: How Beautiful Images are Made in CAD, 3D, VR and AR
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Frank, Ronald A. (November 28, 1977), "IBM Offers
Graphics Unit Manufactured by Sanders",
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up to 40 times per second. The computer altered the display by changing the display list.
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IBM 2250 Model IV display station, including light pen and programmed function keyboard.
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Model 1 – attached directly to a System/360 via a selector or multiplexor channel.
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IBM 1130 Computing System
Component Description IBM 2250 Display Unit Model 4
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diagonal, but the useful display area was 12 inch by 12 inch. A
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IBM System/360 Component
Description IBM 2250 Display Unit Model 1
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Characters were built of line segments specified by display list
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In 1977 IBM introduced the 3250 Display System (manufactured by
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IBM 1130/2250 Graphic
Subroutine Package For Basic FORTRAN IV
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Vector graphics display system by IBM for the System/360
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Pugh, Emerson W.; Johnson, Lyle R.; Palmer, John H.
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The 2250 was housed in a desk with an alphanumeric (
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249:Model 3 – attached via a 2840-2 control unit.
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365:. Cambridge, MA.: The MIT Press. pp.
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411:. Springer Science & Business Media.
269:sold competitors to the 2250, including
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167:) on a 1024 by 1024 grid was stored in
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485:IBM 2250 Programming Information
235:There were four models of 2250:
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361:IBM's 360 and Early 370 Systems
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333:Digital Equipment Corporation
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230:IBM 2282 Film Recorder/Scanner
153:IBM 2250 Graphics Display Unit
125:IBM 2250 Graphics Display Unit
51:IBM 2250 Graphics Display Unit
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309:) as an upgrade to the 2250.
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267:plug compatible manufacturers
199:programmed function keyboard
182:. Thus any character set or
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197:) keyboard and a separate
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82:; 60 years ago
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405:Peddie, Jon (2013-06-13).
279:Information Displays Inc.
252:Model 4 – attached to an
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393:Computer Display Review
219:IBM 2285 Display Copier
505:IBM computer terminals
275:Evans & Sutherland
226:IBM 2280 Film Recorder
510:Graphical terminals
500:IBM display devices
244:character generator
188:character-generator
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307:Sanders Associates
206:was provided as a
163:of line segments (
131:display system by
95:Introductory price
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418:978-1-4471-4932-3
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47:Also known as
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265:A number of
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77:Release date
56:Manufacturer
481:C27-6934-0.
475:A27-2723-0.
261:Competitors
180:subroutines
100:US$ 280,000
494:Categories
440:(48): 1, 6
341:References
301:Successors
137:System/360
329:IBM 3179G
204:light pen
111:light pen
335:DEC GT40
313:See also
254:IBM 1130
169:computer
147:Overview
141:IBM 1130
135:for the
115:keyboard
20:IBM 2250
319:IBM 740
287:Sanders
165:vectors
98:around
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195:QWERTY
127:was a
283:Lundy
271:Adage
107:Input
413:ISBN
371:ISBN
184:font
151:The
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66:Type
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228:or
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