GDDM has been designed for use on many different devices and hardware
systems. The extent to which GDDM is supported on each of these devices
depends on the capabilities of the device hardware. In particular, the
types of data a device can support may be limited. Often, GDDM can
overcome these limitations by using a supported data type to emulate the
appearance of one that is not supported. For example, graphics text can
be used to emulate alphanumeric text, and graphics can be used to emulate
image.
Many of the printers and displays supported by GDDM are said to belong to
the 3270 family of devices because they support (or emulate) the IBM 3270
Information Display System Architecture.
GDDM-supported devices include:
- Printers
-
- 3270-family printers that output alphanumerics, text, graphics, and
images. Some are color printers. Examples of printers in this
category are:
- Graphics printers, such as the IBM 3268-2C and the IBM 3287.
- Intelligent Printer Data Stream (IPDS) printers, such as the IBM
3816, 3112, 3116, 3912, 3916, 4028, 4230, and 4234 printers.
Some IPDS printers can also function as advanced-function
printers via PSF.
- Advanced-function printers, such as the IBM 3800-3, 3820, 3825, and
3900. GDDM cannot send data directly to these printers, but can
produce intermediate files in Advanced Function Printing Data Stream
(AFPDS) format. Such files can be printed via the Print Services
Facility (PSF).
- The IBM 4250, which prints via the Composed Document Print Facility
(CDPF).
- Printers attached to workstations and personal-computer systems that
use the GDDM-PCLK or GDDM-OS/2 Link component of GDDM Base to
communicate with the host computer. Any printer supported by OS/2
Extended Edition 1.2 or later can be accessed via GDDM-OS/2 Link.
In the case of GDDM-PCLK, printers include the IBM 4019 (in
5202-emulation mode), the IBM 5201 and 5202 Quietwriter printers,
and the IBM 4201, 4202, 4207, and 4208 Proprinter series.
- Alphanumerics-only printers (3270 family).
- System printers (also alphanumerics only), such as the IBM 3800-1.
- Displays
-
- 3270-family displays that output alphanumerics, graphics, and
images. Examples include the IBM 3278 (monochrome), the IBM 3179-G,
3192-G, 3279, and 3472-G (color).
- 3270-family, alphanumerics-only displays, such as the IBM 3179-1,
3178, and 3180-1.
- ASCII devices connected via an IBM 3174 controller with an
Asynchronous Emulator Adapter (AEA) card that output alphanumerics,
graphics, and images. These include:
DEC VT240, VT241, VT330, VT340
Tektronix 4105, 420x series
- ASCII devices connected via an IBM 3174 controller with an
Asynchronous Emulator Adapter (AEA) card that output alphanumerics
only. These include the IBM 3151, 3161, and 3164 displays.
- The IBM 5081 and 6091 high-function graphics displays, which can
show either alphanumerics (in 3270-mode operation) or graphics and
images (through the GDDM/graPHIGS program).
- Xstations running host sessions under TCP/IP.
- Plotters
- The IBM 618x and 737x plotters are supported when attached to a 3179-G,
3192-G, or 3472-G display.
- Workstations and personal-computer systems
-
- IBM PS/2 series and other personal-computer systems using the
GDDM-OS/2 Link component of GDDM Base.
- IBM PC, 3270-PC, and PS/2 series personal-computer systems with
graphics-display adapter using the GDDM-PCLK component of GDDM Base.
- IBM 3270-PC series workstations with Programmed Symbols.
- Workstations with major desktop operating systems (OS/2, Windows 95,
Windows, DOS, UNIX, or AIX) are able to access host GDDM graphical
applications via emulation.
The IBM Personal Communications/3270 V4.1 emulation package supports
viewing, printing, and plotting for OS/2, Windows 95, and Windows.
Printing and plotting support is dependent on workstation-installed
device drivers. IBM Personal Communications/3270 V4.1 includes the
interactive functions of rubber-banding, rubber box, and drag that
are popular with GDDM V3 GDDM-OS/2 Link users. IBM PC/3270 V4.1 for
OS/2 and Windows also supports PSS (Programmed Symbol Sets).
Other IBM and non-IBM graphical emulators can be used. For example,
IBM Communications Manager/2 V1.11 includes graphical support,
activated per host session. OS/2 workstations with prior levels of
Communications Manager/2 need to download GDDM-OS/2 Link support
from GDDM. GDDM-OS/2 Link support can be downloaded to your
workstation users, without notifying IBM.
Users of IBM Personal Communications/3270 V2 for DOS or OS/2 need to
download GDDM-PCLK or GDDM-OS/2 Link respectively. PC/3270 V3
includes graphics support for the Windows environment.
For details of IBM 3270-PC series workstations with Programmed
Symbols, see "3270 workstations supported by GDDM Version 3 Release
2" in topic 6.3.6.
DOS workstations require an emulator and the download of GDDM-PCLK.
GDDM-PCLK support can be downloaded to your workstation users,
without notifying IBM. For details of GDDM-PCLK viewing, printing,
and plotting device support, see "Printers and plotters supported by
GDDM Version 3 Release 2" in topic 6.3.5 and "IBM personal-computer
systems supported by GDDM Version 3 Release 2" in topic 6.3.8.
The X3270 emulator provides only graphics viewing for UNIX and AIX
users.
Windows NT (TCP/IP only) workstations are supported via IBM PC/3270
V4.1 for Windows 95 or Windows.
Printers and plotters attached to these devices are also supported.
- Scanning system
- The IBM 3193 alphanumerics and image display (3270 family), together
with an IBM 3117 or 3118 scanner.
- Double-byte character-set systems
- The IBM PS/55 personal-computer system, which can display double-byte
character-set (DBCS) alphanumerics for Kanji (Japanese), traditional
Chinese, and Hangeul (Korean) text is supported, as are displays and
printers in the IBM 5550 family. The displays in a DBCS system can also
handle graphics and image data. Plotters can also be attached to such a
device.
For a complete list of the supported devices, see "Software, hardware,
data streams, and standards" in topic 6.0.
Subtopics:
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GDDM V3R2 General Information
Copyright IBM Corporation 1990, 2012