My Avast Internet Security says I have 4 devices connected--I only have ONE?

I have been having issues with my internet provider. After resolving these issues, I checked my entire Avast 2015 Internet Security. I noticed it said I had 4 devices connected to Avast. I only have 1— my home computer. Two of the other three are older versions (one says last updated 12/2012).
Why is it showing that I have 4 devices connected to Avast? Is this normal? any help to either fix this or explain it to me would be much appreciated.

Just delete the non-excisting devices from https://my.avast.com
And please post in the correct forum next time. (my.avast.com)

Thank you Eddy, I am so sorry. I do appreciate your response!

You’re welcome.

I have 1 iPhone 1 Samsung S111 phone and a android tablet alongside the computer can these be added to list