to Get the device manager, right click on MY COMPUTER and select manage, a windows will come, in that window left hand side there is device manager click on it on the right hand side all the devices of your laptop will be displayed. in the middle you will be able to see network adaptors click on the ''+'' mark...
to get a screen shot press the ''alt+print screen'' button on the keyboard and open MSPAINT and edit-> paste and save it as a jpg image