In a program that creates a great number of output descriptors, it might be more convenient to use system-generated names. A system-generated descriptor name has the form SYSxxxxx, where xxxxx is any character string in the range 00001 through 32767. If you delete an output descriptor with a system-generated name, the system can generate the same name again after wrapping completely around another 32767 name generations. However, when the name comes up again, it does not refer to the deleted descriptor, which remains deleted.