General stylistic and accessibility practice information is available on https://wiki.albany.edu/x/gy8sAQ

Action

To find the service tag or serial number for your Dell or Apple computer, follow the instructions below.

Instructions

Dell

The service tag is usually on a sticker on the computer

Dell also has further instructions available.

Apple

The serial number is usually engraved in small text on the bottom of the computer near regulatory text.

Apple also has further instructions available.