specify the data set options on an input or an output data set. The following table summarizes the general differences between the DROP, KEEP, and RENAME statements and the DROP=, KEEP=, and RENAME= ...

The OUTPUT statement produces an output data set that contains the following: all original data from the SAS data set input to PROC GLM the new variables corresponding to the diagnostic measures ...

Devices that the computer system uses to send out or display information from the processor are called output devices.