First character identifies the type of computer. L for laptop, W for desktop/workstation (D is used for domain controllers) Second and third characters are for the unit code. For example, DE could be your Detroit office The last two characters indicate the year the PC was built (09 for 2009) The remaining 9 characters in the middle (our names are limited to 14 characters) are first initial and last name.
This tells you who the computer belongs to and how old it is. Nice for determining replacement cycles.
My unit within my company does things a little ass backwards from the rest of the corporation. They use user ID's instead of first initial and last name, and then add the last three characters of the PC's S/N to the end instead of a two-digit date code. Still get a nice result to quickly identify the owners of PC's when they start causing issues.
Anywho, that's my mindless random drivel on the topic...
A morsel of genuine history is a thing so rare as to be always valuable. -- Thomas Jefferson