Editing IBM 3270 (section)

====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.