vbscript delete printers

I'm not a scripter so I googled around and found a script to remove all network printers, and it works great for the win7 computers I work on. I was hoping someone wouldn't mind giving a brief description of some of the things going on in the script I found, because I'm trying to learn how to script. So this is the script

 strComputer = "."
 
 Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
 
 Set colInstalledPrinters = objWMIService.ExecQuery _
 ("Select * from Win32_Printer Where Network = TRUE")
 
 For Each objPrinter in colInstalledPrinters
 if (objPrinter.network) then
 objPrinter.Delete_
 end if
 Next

from what I can tell, I think

strComputer = "."

Is a variable set to the local computer name, although, I don't get how it knows that the period is the local computer name.

"winmgmts:\\"   and  "\root\cimv2"

I have know idea what this is all about, I have picked up that the & between thing is kind of like and, so a command that looks like this

\\ & servername & \  & computername
is actually this
\\servername\computername

also, for

objPrinter.network    and    objPrinter.Delete

seems self explanitory, that objPrinter.network is network printers and objPrinter.Delete is to delete a printer - but I was wondering if there is a list of these commands somewhere with a brief description of what they do.

so if anyone has a minute or two, just for a quick explaination of what is happening with this script, I would really appreciate it.