Code for powershell classes tutorial part1 -> http://powershelldistrict.com/a-practical-case-for-using-powershell-classes/

powershell_classes_pratical_example.ps1

Class Computer {
    [String]$Name
    [String]$Type
    [string]$Description
    [string]$owner
    [string]$Model
    [int]$Reboots
 
    [void]Reboot(){
        $this.Reboots ++
    }
 
    Computer ([string]$Name){
        if ($comp = Get-ADComputer -filter "name -eq '$Name'" -Properties * -ErrorAction SilentlyContinue){
            $this.name =$Name
            $this.Description = $Comp.Description
 
            switch -wildcard ($comp.OperatingSystem){
                ('*Server*') {$this.Type = 'Server';Break}
                ('*workstation*') {$this.Type = 'Workstation'}
                ('*Laptop*') {$this.Type = 'Laptop';Break}
                default { $this.Type = 'N/A'}
            
            }
           $this.owner = $comp.ManagedBy.Split(',')[0].replace('CN=','')
        }else{
            write-verbose "Could Not find $($this.name)"
        }
        
    }
    Computer ([string]$Name, [String]$type,[string]$Description,[string]$owner,[String]$Model){
        if (!($comp = Get-ADComputer -filter "name -eq '$Name'" -Properties name)){
 
            
            if ($user = Get-ADUser -Filter "name -eq '$owner'"){
            
                try{
                   New-ADComputer -Name $Name -Description $Description -ManagedBy $user -ErrorAction Stop
                    $this.Name = $Name
                    $this.Type = $type
                    $this.Description = $Description
                    $this.owner = $owner     
                }catch{
                    $_
                } 
            }else{
                write-warning "the user $($Owner) is not existing. Please verify and try again."
            }
        }
        
    }
 
}