function Set-Title {
  Param ([string]$NewTitle)
  $host.ui.rawui.WindowTitle=$NewTitle
}

Set-Alias title Set-Title

function Save-Title {
  $script:SavedTitle=$host.ui.rawui.WindowTitle
}

#call the Save-Title function
Save-Title
$report="report.txt"

#write a line to the report
"REPORT CREATED $(get-date)" | Out-File $report

Get-Content servers.txt | foreach {
#skip blank lines
 if (($_).length -gt 0) 
 {
    #create a new variable to make things easier to read and
    #trim off any extra spaces. Make the name upper case
    #while we're at it.
    $server=($_.Trim()).ToUpper()
    $newtitle="Checking $server"
    
    #set a new title
    title $newtitle
    
    $server  | Out-File $report -append
    "Operating System" | Out-File $report -append
    Get-WmiObject win32_operatingsystem -computer $server | Out-File $report -append
    
    "ComputerSystem" | Out-File $report -append
    Get-WmiObject win32_computersystem -computer $server | Out-File $report -append
    #pause for a few seconds just to show title in action
    #not really required.
    sleep 2
 } #end If
} #end foreach

#revert back to old title
Title $script:savedtitle

#view report
Notepad $report