Cmdxx key
Provided by the ASK Keyboard Dictionary
![](resources/images/keycaps/shark_1390886_ibm_cmdxx.jpg)
Command function (Cmd) keys were typically found on IBM 5250-style 122-key terminal keyboards and were used to pass information between the terminal and the (IBM midrange) host system programs and to perform terminal operations. There were region-specific versions of the nomenclature such as "Mdtxx" for Spanish keyboards.