Editing IBM 3270 (section)

===Displays===
Generally, 3277 models allow only upper-case input, except for the mixed EBCDIC/APL or ''text'' keyboards, which have lower case. Lower-case capability and [[dead key]]s were available as an [[Request price quotation|RPQ]] (''Request Price Quotation''); these were added to the later 3278 & 3279 models.

A version of the [[IBM PC]] called the [[IBM 3270 PC|3270 PC]], released in October 1983, includes 3270 [[terminal emulator|terminal emulation]]. Later, the 3270 PC/G (graphics), 3270 PC/GX (extended graphics), 3270 Personal Computer AT, 3270 PC AT/G (graphics) and 3270 PC AT/GX (extended graphics) followed.

====CUT vs. DFT====
There are two types of 3270 displays in respect to where the 3270 data stream terminates. For CUT (Control Unit Terminal) displays, the stream terminates in the display controller, the controller instructs the display to move the cursor, position a character, etc. EBCDIC is translated by the controller into '3270 Character Set', and keyboard scan-codes from the terminal, read by the controller through a poll, is translated by the controller into EBCDIC. For DFT (Distributed Function Terminal) type displays, most of the 3270 data stream is forwarded to the display by the controller. The display interprets the 3270 protocol itself.

In addition to passing the 3270 data stream directly to the terminal, allowing for features like EAB — Extended Attributes, Graphics, etc., DFT also enabled multi sessions (up to 5 simultaneous), featured in the 3290 and 3194 multisession displays. This feature was also widely used in 2nd generation [[3270 emulator|3270 terminal emulation]] software.

The MLT — Multiple Logical Terminals feature of the 3174 controller also enabled multiple sessions from a CUT type terminal.

{| class="wikitable sortable"
|+ CUT vs. DFT
|-
! Display Station Name !! CUT vs. DFT
|-
| 3178 — all models || CUT
|-
| 3179 — Model 1 || CUT
|-
| 3179 — Models G1, G2 || DFT
|-
| 3180 — Model 1 || CUT
|-
| 3191 — all models || CUT
|-
| 3192 — Models C, D, F, L, W || CUT
|-
| 3192 — Model G || DFT
|-
| 3193 — all models || DFT
|-
| 3194 — all models || DFT
|-
| 3277 — all models || CUT
|-
| 3278 — all models || CUT
|-
| 3279 — all models || CUT
|-
| 3290 — all models || DFT
|-
|3472 — except model G
|CUT
|-
|3472 — model G
|DFT
|-
|3482 — all models
|DFT
|}

====3277====
*3277 model 1: 40×12 terminal
*3277 model 2: 80×24 terminal, the biggest success of all<ref>{{Cite web|date=2017-02-02|title=IBM 3277 Terminal|url=https://vintagecomputer.ca/ibm-3277-terminal/|access-date=2021-06-11|website=VintageComputer.ca|language=en-US}}</ref>
*3277 GA: a 3277 with an [[RS-232|RS232C]] I/O, often used to drive a [[Tektronix]] 4013 or 4015 graphic screen (monochrome)
[[File:IBM 3278 terminal.jpg|thumb|3278 terminal]]

====3278====
*3278 models 1–5: next-generation, with accented characters and [[dead key]]s in countries that needed them
** model 1: 80x12
** model 2: 80×24
** model 2A: 80x24 (console) with 4 lines reserved
** [[File:IBM 3278 and 3279 terminals.jpg|thumb|IBM 3278 and 3279 terminals side-to-side]]model 3: 80×32 or 80x24 (switchable)
** model 4: 80×43 or 80x24 (switchable)
** model 5: 132×27 or 80×24 (switchable)
* Extended Highlighting: ability to set highlighting attributes on individual characters as well as on fields. For the 3278 that includes:
** blinking
** character set
** reverse video
** underscored
* Programmed Symbols {PS): programmable characters; able to display monochrome graphics

The 3278, along with the 3279 color display and the 3287 printer, introduced the ''Extended Display Stream'' (EDS) as the framework for new features.

====3279====
[[Image:IBM-3279.jpg|thumb|IBM 3279 Color Display Terminal]]
[[File:Informatics_General_programmer_at_terminal.jpg|thumb|right|An Informatics General computer programmer using an IBM 3279 terminal]]
[[File:3279-S3G-chart.webm|thumb|IBM 3279-S3G terminal displaying a pie chart, showing [[Green_Lightning_(computing)|green lightning]]]]
The '''IBM 3279''' was IBM's first color{{sfn|3270 Color PSS|loc=Ch. 3. Color Capability|pp=[http://bitsavers.org/pdf/ibm/3278/GA33-3056-0_3270_Information_Display_System_Color_and_Programmed_Symbols_3278_3279_3287_Sep1979.pdf#page=19 3-1–3-6]}} terminal. IBM initially announced four models, and later added a fifth model for use as a processor console.
* Models
** model 2A: 80-24 base color
** model 2B: 80-24 extended color 
** model 2C: 80-24 base color (console) with 4 lines reserved
** model 3A: 80-32 base color
** model 3B: 80-32 extended color 
** model S3G: 80-32 extended color with programmed symbol set graphics
;Base color: In base color mode the protection and intensity field attributes determine the color:
:{| class="wikitable"
|+ Base color mode
|-
! Protection
! Intensity
! Color
|-
| Unprotected
| Normal
| style="color: Green;background-color:DarkGray; font-weight: bold;" | Green
|-
| Unprotected
| Intensified
| style="color: Red; background-color:DarkGray; font-weight: bold;" | Red
|-
| Protected
| Normal
| style="color: Blue; background-color:DarkGray; font-weight: bold;" | Blue
|-
| Protected
| Intensified
| style="color: White; background-color:DarkGray; font-weight: bold;" | White
|}
;Extended color: In extended color mode the color field and character attributes determine the color as one of
* Neutral (White) 
* Red 
* Blue 
* Green 
* Pink 
* Yellow 
* Turquoise

The 3279 was introduced in 1979.<ref>{{cite web
   |url=http://www-03.ibm.com/ibm/history/history/year_1979.html
   |archive-url=https://web.archive.org/web/20050117192808/http://www-03.ibm.com/ibm/history/history/year_1979.html
   |url-status=dead
   |archive-date=January 17, 2005
   |title=IBM Archives: 1979|date=January 23, 2003}}</ref> The 3279 was widely used as an [[IBM mainframe]] terminal before PCs became commonly used for the purpose. It was part of the 3270 series, using the 3270 [[data stream]].{{sfn|3270 Data Stream}} Terminals could be connected to a 3274 controller, either channel connected to an IBM mainframe or linked via an SDLC ([[Synchronous Data Link Control]]) link. In the [[Systems Network Architecture]] (SNA) protocol these terminals were logical unit type 2 (LU2). The basic models 2A and 3A used red, green for input fields, and blue and white for output fields. However, the models 2B and 3B supported seven colors, and when equipped with the optional Programmed Symbol Set feature had a loadable character set that could be used to show graphics. The Programmed Symbol Set feature could be added in the field, and was standard in the model S3G.

The IBM 3279 with its graphics{{efn|Models 2B, 3B, and S3G only.}} software support, [[Graphical Data Display Manager]] (GDDM), was designed at IBM's [[IBM Hursley|Hursley Development Laboratory]], near [[Winchester, England]].<ref>{{cite web
   |url=http://hursley.slx-online.biz/hursley-products-hw.asp 
   |title=Hardware Products Developed at Hursley (IBM Hursley Museum)
   |archive-url=https://web.archive.org/web/20171105003500/http://hursley.slx-online.biz/hursley-products-hw.asp
   |archive-date=2017-11-05}}</ref>

====3290====
[[File:A computer operator works at an IBM 4381 four-window work station in a computer room at the Arnold Engineering Development Center, where numerous mainframe and super computers are u - DPLA - b8ef28c4e9b101b7ccc7f2e5ee1a68ed.jpeg|thumb|IBM 3290]]
The 3290 Information Panel a 17", amber monochrome [[plasma display]] unit announced<ref>{{cite web
 |title = IBM 3290 Information Panel
 |id = LTR 183-033
 |date = March 8, 1983
 |url = https://www.ibm.com/common/ssi/rep_ca/3/897/ENUS183-033/index.html
 |department= Announcement letters
 |website= IBM
 |archive-url= https://web.archive.org/web/20200918094346/https://www-01.ibm.com/common/ssi/rep_ca/3/897/ENUS183-033/index.html
 |archive-date= 2020-09-18
 }}
</ref> March 8, 1983, capable of displaying in various modes, including four independent 3278 model 2 terminals, or a single 160×62 terminal; it also supports partitioning.{{sfn|3270 Introduction|loc=[http://bitsavers.org/pdf/ibm/3270/GA27-2739-22_3270_Information_Display_System_Introduction_Oct88.pdf#page=35 3290 Information Panel]|pp=3-10–3-11}}{{efn|Although the 3290 supports up to 16 explicit partitions, the ISPF SPLIT and SPLITV commands only support 4.}} The 3290 supports graphics through the use of ''programmed symbols''. A 3290 application can divide its screen area up into as many as 16 separate ''explicit partitions'' (logical screens).

The 3290 is a Distributed Function Terminal (DFT) and requires that the controller do a downstream load (DSL) of microcode from floppy or hard disk.

====317x====
*3178: lower cost terminal (1983)
*3179: low cost color terminal<ref>{{cite web
 |       url = http://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/9/897/ENUS184-039/index.html&lang=en&request_locale=en
 |     title = IBM 3179 COLOR DISPLAY STATION
 |        id = LTR 184-039
 |      date = March 20, 1984
 |      department= Announcement Letters
 | website= IBM
 |     quote = IBM announces the 3179 Color Display Station, a new, low price, color display member of the IBM 3270 Information Display System. The 3179 is a compact, 7-color, 1920-character, 14-inch CRT with bright, clear colors and a smudge-free screen surface. It features a new, modifiable keyboard, and function equivalent to that provided by both the IBM 3279 Models S2A and S2B....First customer shipment for the 3179 is planned for March 1984. ...Purchase...$2,295...
 }}
</ref> announced March 20, 1984.

====3180====
The 3180 was a monochrome display, introduced on March 20, 1984, that the user could configure for several different basic and extended display modes; all of the basic modes have a primary screen size of 24x80. Modes 2 and 2+ have a secondary size of 24x80, 3 and 3+ have a secondary size of 32x80, 4 and 4+ have a secondary size of 43x80 and 5 and 5+ have a secondary size of 27x132. An application can override the primary and alternate screen sizes for the extended mode. The 3180 also supported a single explicit partition that could be reconfigured under application control.

====3191====
The IBM 3191 Display Station is an economical monochrome CRT. Models A and B are 1920 characters 12-inch CRTs. Models D, E and L are 1920 or 2560 character 14-inch CRTs.

====3192====
* Model C provides a 7-color 14 inch CRT with 80x24 or 80x32 characters
* Model D provides a green monochrome 15 inch CRT with 80x24, 80x32, 80x44 or 132x27 characters
* Model F provides a 7-color high-resolution 14 inch CRT with 80x24, 80x32, 80x44 or 132x27 characters
* Model G provides a 7-color 14 inch CRT with 80x24 or 80x32 characters
* Model L provides a green monochrome 15 inch CRT with 80x24, 80x32, 80x44 or 132x27 characters with a selector{{efn|name=sel}} pen capability
* Model W provides a black and while 15 inch CRT with 80x24, 80x32, 80x44 or 132x27 characters

====3193====
The IBM 3193 Display Station is a high-resolution, portrait-type, monochrome, 380mm (15 inch) CRT image display providing up to letter or A4 size document display capabilities in addition to alphanumeric data.
Compressed images can be sent to the 3193 from a scanner and decompression is performed in the 3193.
Image data compression is a technique to save transmission time and reduce storage requirements.

====3194====
The IBM 3194 is a Display Station that features a 1.44&nbsp;MB 3.5" floppy drive and [[IND$FILE]] transfer.
* Model C provides a 12-inch color CRT with 80x24 or 80x32 characters
* Model D provides a 15-inch monochrome CRT with 80x24, 80x31, 80x44 or 132x27 characters
* Model H provides a 14-inch color CRT with 80x24, 80x31, 80x44 or 132x27 characters

====Subsequent====
*3104: low-cost R-loop connected terminal for the [[IBM 8100]] system
*3472 Infowindow

====Non-IBM Displays====
Several third-party manufacturers produced 3270 displays besides IBM.

=====GTE=====
GTE manufactured the IS/7800<ref>{{cite web
|     title = GTE IS/7800 Video Display Systems
|        id = C25-457-103
|      date = May 1977
|       url = https://bitsavers.computerhistory.org/pdf/datapro/alphanumeric_terminals/Datapro_C25_GTE.pdf
| publisher = Datapro
|website=Bitsavers
 }}
</ref> Video Display System, nominally compatible with IBM 3277 displays attached to a 3271 or 3272. An incompatibility with the RA buffer order broke the logon screen in VM/SE (SEPP).

=====Harris=====
Harris manufactured the 8000<ref>{{cite web
 |     title = Harris 8000 Series Terminal Systems
 |        id = C25-468-101
 |      date = July 1985
 |       url = http://bitsavers.org/pdf/datapro/alphanumeric_terminals/Datapro_C25_Harris.pdf#page=5
 | publisher = Datapro
|website=Bitsavers
 }}
</ref> Series Terminal Systems, compatible with IBM 3277 displays attached to a 3271 or 3272.

Harris later manufactured the 9100–9200<ref>{{cite web
 |     title = Harris 9100/9200 Information Processing Systems
 |        id = C25-468-101
 |      date = July 1985
 |       url = http://bitsavers.org/pdf/datapro/alphanumeric_terminals/Datapro_C25_Harris.pdf
 | publisher = Datapro
|website=Bitsavers
 }}
</ref> Information Processing Systems, which included
* 9178
* 9278
* 9279-2A
* 9279-3G
* 9280

=====Informer 270 376/SNA=====
[[Informer Computer Terminals]] manufactured a special version of their model 270 terminal that was compatible with IBM 3270 and its associated coax port to connect to a 3x74.<ref>{{Cite web|url=https://github.com/charcole/zmachine3270|title = Charcole/Zmachine3270| website=[[GitHub]] |date = September 13, 2021}}</ref><ref>Archived at [https://ghostarchive.org/varchive/youtube/20211205/U6nj1dibTCA Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20200915135439/https://www.youtube.com/watch?v=U6nj1dibTCA Wayback Machine]{{cbignore}}: {{cite web| url = https://www.youtube.com/watch?v=U6nj1dibTCA| title = IBM 3270 compatible terminal playing Infocom games (Informer 207 376/SNA) | website=[[YouTube]]| date = August 24, 2020 }}{{cbignore}}</ref>

=====Memorex Telex=====

* Memorex 1377, compatible with IBM 3277<br />Attaches to 1371 or 1372

Documentation for the following is available at<ref>{{cite web
 | title       = 3270 Plug-Compatible Peripherals
 | url         = http://www.bitsavers.org/pdf/memorex/terminal/Memorex_3270_Compatible_Terminals_Jan86.pdf
 | work        = Communications Products
 | publisher   = Memorex
 | access-date = March 14, 2022
 }}
</ref>

* Memorex/Telex 2078
* Memorex/Telex 2079
* Memorex/Telex 2080
* Memorex/Telex 2178
* Memorex/Telex 2179

=====Nokia/Alfaskop=====
* Alfaskop Display Unit 4110
* Alfaskop Display Unit 4112

=====AT&T=====
[[AT&T]] introduced the Dataspeed 40 terminal/controller, compatible with the IBM 3275, in 1980.<ref>{{cite web |title=Computer II Reference |url=https://www.cybertelecom.org/ci/ciiref.htm |website=Cybertelecom |access-date=May 17, 2021}}</ref>

====Graphics models====
IBM had two different implementations for supporting graphics. The first was implemented in the optional Programmed Symbol Sets{{sfn|3270 Color PSS|loc=Chapter 7 Programmed Symbols Capability|pp=[http://bitsavers.org/pdf/ibm/3278/GA33-3056-0_3270_Information_Display_System_Color_and_Programmed_Symbols_3278_3279_3287_Sep1979.pdf#page-52 7-1–7-7] }} (PSS) of the 3278, 3279 and 3287, which became a standard feature on the later 3279-S3G, a.k.a. 3279G, and was based on piecing together graphics with on-the-fly custom-defined symbols downloaded to the terminal.

The second later implementation provided All Points Addressable (APA) graphics, a.k.a. Vector Graphics, allowing more efficient graphics than the older technique. The first terminal to support APA / Vector graphics was the 3179G terminal, which was later replaced by first the 3192G, then the 3472G.

Both implementations are supported by [[Graphical Data Display Manager|IBM GDDM]] — Graphical Data Display Manager first released in 1979, and by [[SAS (software)|SAS]] with their SAS/GRAPH software.

=====IBM 3279G=====
IBM 3279-S3G, a.k.a. 3279G, terminal, announced in 1979, was IBM's graphics replacement for the 3279-3B with PSS. The terminal supported 7 colors and the graphics were made up of Programmable Symbol sets loaded to the terminal by the graphical application [[Graphical Data Display Manager|GDDM — Graphical Data Display Manager]] using Write Structured Field command.

Programmable Symbols is an addition to the normal base character set consisting of [[Latin script|Latin characters]], numbers, etc. hardwired into the terminal. The 3279G supports six additional sets of symbols each supporting 190 symbols, resulting in a total of 1.140 programmable symbols. Three of the Programmable Symbols sets have three planes each enabling coloring (red, blue, green) the Programmable Symbols downloaded to those sets, thereby supporting a total of seven colors.

Each 'character' cell consists of a 9x12 or a 9x16 dot matrix depending on the screen model. In order to program a cell with a symbol 18 bytes of data is needed making the data load quite heavy in some instances when compared to classic text screens.

If one for example wishes to draw a hyperbola on the screen, the application must first compute the required Programmable Symbols to make up hyperbola and load them to the terminal. The next step is then for the application to paint the screen by addressing the screen cell position and select the appropriate symbol in one of the Programmable Symbols sets.

The 3279G could be ordered with Attribute Select Keyboard enabling the operator to select attributes, colors and Programmable Symbols sets, making that version of the terminal quite distinctive.

=====IBM 3179G=====
{{Infobox information appliance
| name         = IBM 3179G
| title        = 
| aka          = IBM 3179G Color Display Station
| logo         = 
| image        = 
| caption      = 
| developer    = 
| manufacturer = [[IBM]]
| family       = 
| type         = 
| generation   = 
| releasedate  = {{Start date|1984|03}}
| lifespan     = 
| price        = {{USD|2295|1984}}
| discontinued = 
| unitssold    = 
| unitsshipped = 
| media        = 
| os           = 
| power        = 
| soc          = 
| cpu          = 
| memory       = 
| storage      = 
| memory card  = 
| display      = 
| graphics     = 
| sound        = 
| input        = 
| controllers  = 
| camera       = 
| touchpad     = 
| connectivity = 
| platform     = 
| service      = 
| dimensions   = 
| weight       = 
| topgame      = 
| compatibility= 
| predecessor  = 
| successor    = IBM 3192-G
| related      = 
| website      = <!--{{URL|example.org}}-->
}}
The '''IBM 3179G''' announced June 18, 1985,<ref>{{cite web
 |title = IBM 3179 Color Graphics Display Station Models G1 and G2 and IBM 3979 Expansion Unit
 |id = LTR 185-076
 |date = June 18, 1985
 |department= Announcement Letters
 |quote = The IBM 3179 Color Graphics Display Station Models G1 and G2 and the IBM 3979 Expansion Unit are the latest members of the IBM 3270 Information Display System graphics family of products. The 3179 G models are new, attractively priced, eight-color, 1,920- or 2,560-character, 14-inch CRTs with bright, clear colors and a smudge-resistant screen surface. Graphics capabilities are significantly enhanced by the provision of an all-points-addressable (APA) screen and the ability to natively attach the IBM Color Jetprinter (3852 Model 2) for local screen copy.
 |url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/6/897/ENUS185-076/index.html&request_locale=en
 |archive-url= https://web.archive.org/web/20210608225107/https://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/6/897/ENUS185-076/index.html&request_locale=en
 |archive-date= 2021-06-08
 |website= IBM
 }}
</ref> is an [[IBM]] mainframe computer terminal providing 80×24 or 80×32 characters, 16 colors, plus graphics<ref>{{cite magazine|url=https://books.google.com/books?id=9z4EAAAAMBAJ&q=IBM+3179G&pg=PA11|title=Sun Software Emulates IBM Display Terminal|author=Mark Stephens|page=11|date=June 20, 1988|magazine=[[InfoWorld]]|volume=10|issue=25|quote=emulates an IBM 3179G display terminal and allows Sun workstation users}}</ref><ref>{{cite magazine|url=https://books.google.com/books?id=ihwEAAAAMBAJ&q=IBM+3179G&pg=PA27|title=Telex beefs up its lineup|author=Jim Brown|page=27|date=February 16, 1987|magazine=[[Network World]]|volume=4|issue=7|quote=...The firm also introduced an option that supports attachment of IBM's 3179G Graphic Display Station to a series 274 controller...}}</ref><ref>{{cite newsgroup|url=https://groups.google.com/d/msg/comp.terminals/GId6mlbDSSc/ouzum7qyojkJ|title=IBM 3179G: To beep or not to beep|author=Ken Hornstein|date=January 10, 1991|newsgroup=comp.terminals}}</ref><ref>{{cite web|url=http://datamuseum.dk/wiki/Genstand:11000554_IBM_3179G|title=Object: 11000554 IBM 3179G, producer: IBM, serial number: 55-N1186, dating: 1985-11-01–1985-11-30, received: 2009-11-18, Description: IBM 3179 — Display station (color or graphics) for IBM 3270|website=Danish Data Historical Society Wiki}}</ref><ref>{{cite magazine|url=https://books.google.com/books?id=tD4MjDGn6ScC&q=IBM+3179G+graphics+display+terminal+released&pg=PA62|title=Software & Services:Productivity Aids|page=62|date=July 15, 1985|magazine=[[Computerworld]]|volume=19|issue=28|quote=Pansopic Systems, Inc has announced that Gener/O1, its online program development system for IBM's CICS, now supports IBM's 3179 Model G graphics terminal...}}</ref> and is the first terminal to support the APA graphics apart from the 3270 PC/G, 3270 PC/GX, PC AT/G and PC AT/GX.

3179-G terminals combine text and graphics as separate layers on the screen. Although the text and graphics appear combined on the screen, the text layer actually sits over the graphics layer. The text layer contains the usual 3270-style cells which display characters (letters, numbers, symbols, or invisible control characters).<ref name=G.models>{{cite web
   |url=http://www.prycroft6.com.au/misc/3270grfx.html
   |title=3270 Graphics|author=Greg Price
   |date=January 2008   |website=Prycroft Six
   |quote=2. Native Vector Graphics — introduced with the 3179G and also used by the 3192G and 3472G.}}</ref> The graphics layer is an area of 720×384 pixels.<ref>{{cite book|chapter-url=http://docs.attachmate.com/reflection/14.x/prog-ref/ibm/3179gcoordinates.htm|archive-url=https://web.archive.org/web/20171210072440/http://docs.attachmate.com/reflection/14.x/prog-ref/ibm/3179gcoordinates.htm|archive-date=2017-12-10|title=Reflection for IBM 14.x — Programming Reference|chapter=3179G graphics coordinates|quote=IBM 3179G graphics coordinates divide the Reflection window into 384 vertical units and 720 horizontal units.}}</ref> ''All Points Addressable'' or ''vector graphics'' is used to paint each pixel in one of sixteen colors. As well as being separate layers on the screen, the text and graphics layers are sent to the display in separate data streams, making them completely independent.

The application i.e. [[Graphical Data Display Manager|GDDM]] sends the vector definitions to the 3179-G, and the work of activating the pixels that represent the picture (the vector-to-raster conversion) is done in the terminal itself. The datastream is related to the number of graphics primitives (lines, arcs, and so on) in the picture. Arcs are split into short vectors, that are sent to the 3179-G to be drawn. The 3179-G does not store graphic data, and so cannot offload any manipulation function from GDDM. In particular, with user control, each new viewing operation means that the data has to be regenerated and retransmitted.

The 3179G is a distributed function terminal (DFT) and requires a downstream load (DSL) to load its microcode from the cluster controller's floppy disk or hard drive.

The G10 model is a standard 122-key typewriter keyboard, while the G20 model offers [[APL programming language|APL]] on the same layout. Compatible with [[System/370|IBM System/370]], [[IBM 4300 series]], 303x, 308x, [[IBM 3090]], and [[IBM 9370]].

===== IBM 3192G =====
<dfn>The IBM 3192G, announced in</dfn> 1987 <dfn>was the</dfn> successor to 3179G. It featured 16 colors, and support for printers (i.e., IBM Proprinter) for local hardcopy with graphical support, or system printer, text only, implemented as an additional LU.

=====IBM 3472G=====
The IBM 3472G announced in 1989 was the successor to 3192G and featured five concurrent sessions, one of which could be graphics. Unlike the 3192-G, it needed no expansion unit to attach a mouse or color plotter, and it could also attach a tablet device for digitised input and a bar code reader.