IBM Model M type 3193 Keyboard

By Xah Lee. Date: . Last updated: .

IBM Model M 3193 keyboard, 1988

IBM Model M 3193 keyboard part num 1389162-s
IBM Model M 3193 keyboard, made 1988. 5312×2988 〔image source http://imgur.com/a/tIonH, by Snowdog993, 2015-05-09 〕

This keyboard does not have a Control key.

IBM Model M keyboard 13037-s
5312×2988 〔image source https://geekhack.org/index.php?topic=76174.0, by Snowdog993, 2015-10-20〕

lots more photos of model M at http://snowdog993.imgur.com/

Model M vs Model F

IBM M122 keyboard review (IBM buckling springs)

IBM Model M type 3192-G keyboard, 1985

IBM Model M type 3192-G keyboard 1985
IBM Model M type 3192-G keyboard, 1985. (photo by Vance Morris image source)

this keyboard is actually one of the few that you won't see a control key on.

It was made for use with a 3270 terminal connected to a Mainframe where there was no use for a control key.…

The extra keys are related to different shortcut macros that are used in the Mainframe. Meaning, there were 24 different functions to use.

The PA keys are for different Program Access functions. PA1 is the attention key which is like hitting ctrl+C to halt a function. PA2 is used to reshow a screen. So, if you accidentally hit the clear key before you were done viewing something, you can hit PA2 and reshow it.

the PA1-3 keys have different functionality depending on the environment. I have only used PA1 in TSO to send an interrupt.

From what Haiduk has told me, that entire left side was usually made up of custom keys that programmers put there for specific tasks.

PF19 is scroll up and 20 is down.

Here's a list of the default keymaps used in Personal Communicator (another 3270 emulator). http://publib.boulder.ibm.com/infocenter/pcomhelp/v5r9/index.jsp?topic=/com.ibm.pcomm.doc/books/html/emulator_reference11.htm

[by Vance Morris and Brett Dawson, from https://plus.google.com/+VanceMorris/posts/79HtVgkNdAD]

Affirmative Keyboard

CLI-122 key keyboard
Affirmative keyboard. 〔image source https://deskthority.net/keyboards-f2/cli-is-this-a-buckling-spring-keyboard-t7792.html

info http://www.twindata.com/cli/clikeyboard.htm

Affirmative keyboard 1227T 95320
Affirmative keyboard 1227T.

The key mechanism is buckling spring.

This seems to be used for IBM mainframes.

Affirmative Computer Products manufactures a complete line of keyboards to increase productivity for users moving from iSeries AS/400 Twinax (5250) and zSeries Mainframe Coax (3270) terminals that have 122-key keyboards to PCs or Thin Client / Ethernet Terminals.

[ from http://www.twindata.com/affirmative/5250keyboard.htm]