Editing IBM 3270 (section)

==Applications==
Following its introduction the 3270 and compatibles were by far the most commonly used terminals on [[IBM System/370]] and successor systems.<ref name=HOB>{{cite web
   |author=Klaus Brandstaetter
   |title=3270 -Brief History
   |url=http://www.hob-techtalk.com/2008/09/12/3270-a-brief-history
   |website=HOB Techtalk
   |access-date=August 19, 2015
   |archive-date=February 16, 2012
   |archive-url=https://web.archive.org/web/20120216195850/http://www.hob-techtalk.com/2008/09/12/3270-a-brief-history
   }}</ref> IBM and third-party software that included an interactive component took for granted the presence of 3270 terminals and provided a set of [[ISPF]] [[Panel (computer software)|panels]] and supporting programs.

[[Conversational Monitor System]] (CMS) in [[VM (operating system)|VM]] has support for the 3270<ref>{{cite manual
  |title=IBM Virtual Machine Facility/370: Terminal User's Guide
  |id=GC20-1810-6 
  |edition=Seventh
  |date=October 1974
  |url=http://bitsavers.org/pdf/ibm/370/VM_370/Release_3/GC20-1810-6_VM370_Terminal_Users_Guide_Rel_3_1976.pdf
  |publisher=International Business Machines Corporation   |mode=cs2}}
</ref> continuing to [[z/VM]].

[[Time Sharing Option]] (TSO) in [[OS/360 and successors]] has line mode command line support and also has facilities for full screen applications, e.g., [[ISPF]].

Device Independent Display Operator Console Support (DIDOCS) in Multiple Console Support (MCS) for OS/360 and successors supports 3270 devices and, in fact, MCS in current versions of MVS no longer supports line mode,{{efn|Other than the [[IBM Hardware Management Console|Hardware Management Console (HMC)]]}} [[IBM 2250|2250]] or [[IBM 2260|2260]] devices.

The SPF and [[ISPF#ISPF Editor|''Program Development Facility'']] (ISPF/PDF) [[Text editor|editors]] for [[MVS]] and [[VM (operating system)|VM/SP]] (ISPF/PDF was available for VM, but little used) and the [[XEDIT]] [[Text editor|editors]] for [[VM (operating system)|VM/SP]] through z/VM make extensive use of 3270 features.

[[CICS|Customer Information Control System]] (CICS) has support for 3270 panels. Indeed, from the early 1970s on, CICS applications were often written for the 3270.<ref name="horswill"/>{{rp|195ff}}

The online editing and job submission environment [[Source Program Maintenance Online II]] (SPM) was oriented around the 3270.<ref name="ibm-biblio-2nd">{{cite book | url=http://www.bitsavers.org/pdf/ibm/370/bibliography/GC20-0001-1_370biblio_Jun75.pdf | title=IBM System 370/Bibliography | edition=Second | publisher=International Business Machines Corporation | date=June 1975 | page=159}}</ref>

Various versions of [[ORVYL and WYLBUR|Wylbur]] have support for 3270, including support for full-screen applications.

McGill University's [[MUSIC/SP]] operating system provided support for 3270 terminals and applications, including a full-screen text editor, a menu system, and a PANEL facility to create 3270 full-screen applications. 

The modified data tag is well suited to converting formatted, structured punched card input onto the 3270 display device. With the appropriate programming, any batch program that uses formatted, structured card input can be layered onto a 3270 terminal.

IBM's [[OfficeVision]] office productivity software enjoyed great success with 3270 interaction because of its design understanding. And for many years the [[PROFS]] calendar was the most commonly displayed screen on office terminals around the world.{{citation needed|date=September 2020}}

A version of the [[WordPerfect]] [[word processor]] ported to [[IBM System/370|System/370]] was designed for the 3270 architecture.