Answer

Windows 7

  1. Click Start -> Devices and Printers
  2. The printers are under the Printers and Faxes section
    • If you don't see anything, you may need to click on the triangle next to that heading to expand the section
  3. The default printer will have a check next to it
    • This can be changed by right-clicking another printer and clicking Set as default printer

Windows 8/10

  1. Click Start and search "Printers and Scanners"
  2. The printers are under the Printers and Scanners section
  3. The default printer will be the one most recently used at your current location

Mac OS X (10.5 and up)

  1. Click the Apple menu -> System Preferences...
  2. The printers are under the Print & Fax section of the System Preferences window.
  3. The default printer is listed in the "Default printer:" drop-down menu.
    • This can be changed by selecting another option from the drop-down menu.