Vernooij, Kees wrote:

>When I started, also the terminals we used for online access (TSO, IMS etc.) 
>were uppercase only. I don't know why, maybe because dual case were not 
>available, cost more, were not necessary?

Perhaps you're refering to those 3279 and similar IBM 3270 display terminals? 
Those heavy toys have 3 blue switches, one for Normal/Test, one for 4 or 2 
colours and lastly one which switch from A,a to A or vice versa.

From https://en.wikipedia.org/wiki/IBM_3270 I see this note:

"3270 character set" [ This set contains both lower and upper case letters ]

"On the 3275 and 3277 terminals without the a text feature, lower case 
characters display as uppercase."
 
Kees, are you perhaps refering to those 3275 or 3277 terminals?

I am for once glad we don't have those terminals. It is a nightmare to carry 
them around and they will break these flimsy tables we now have... ;-)

Groete / Greetings
Elardus Engelbrecht

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