Dell PowerEdge 2450 - Manual (Page 149)

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Screen text is a message or text that you are instructed to type as part of a com-
mand (referred to as a command line). Screen text is presented in the Courier
New font.
Example: The following message appears on your screen:
Example: "Type
and press ."
Variables are placeholders for which you substitute a value. They are presented in
italics.
Example: DIMM_x (where x represents the DIMM socket designation).