Data entry keyboard

Provided by the ASK Keyboard Dictionary

Data entry (DE) keyboards are a type of terminal keyboard commonly found in mainframe, terminal and sometimes server usage that are specialised for simple data entry. Such keyboards are typically smaller than their typewriter-like (DA) counterparts and function with either a numeric shift (upper) or alphabetic shift (lower) only. They descended from IBM Card Punch keyboards and can only enter letters in uppercase.

Sources

ASK. Admiral Shark's Keyboards original content. License/note: CC BY-NC-SA 4.0.