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z/VM Additional capabilities

Under z/VM, EXECIO is more sophisticated and besides the DISKR and DISKW functions already discussed, it offers the following additional services.

• CARD
  
  
• CP
  
  
• EMSG
  
  
• PRINT
  
  
• PUNCH
  
  

These will be covered in brief over the remaining pages.

z/VM and the additional EXECIO capabilities

There is no direct z/OS equivalent of these functions;

• CARD
  Reads records from the virtual reader device.
  
  
• CP
  Facilitates the execution of a CP Command.
  
  
• EMSG
  Issues a message. (Under z/OS the TSO SEND command is a possible alternative)
  
  
• PRINT
  Writes records to the virtual punch device. (Under z/OS the IDCAMS PRINT command is a possible alternative).
  
  
• PUNCH
  Writes records to the virtual punch device