IBM published a lot of reference cards; the one below was helpful when we had to talk to DOS/VS at the console. It is the “System/370 DOS/VS POWER/VS Reference Summary”. Every serious operator had or wanted one.
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1459-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1460-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1461-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1463-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1465-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1466-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1467-791x1024.jpg)
![](https://geronimo370.nl/wp-content/uploads/2018/12/IMG_1469-791x1024.jpg)
Gerards tech site
IBM published a lot of reference cards; the one below was helpful when we had to talk to DOS/VS at the console. It is the “System/370 DOS/VS POWER/VS Reference Summary”. Every serious operator had or wanted one.