<human>: I've been with the same company for four years and have gone from being a delivery driver to doing computer tech support for them.

I have had other jobs that may help me in my search for an IT position (repairing the robots and game machines of a certain mouse-themed pizza restaurant).  I just don't know if it would make my resume bloated or not.

Also, should I list the positions I have held within the company I am with now or just list the ones that highlight my strengths in the field I want? The other shifts were manager-on-duty positions so I'm not sure those would hurt me but I'm also not sure if they would help.

Summarize the given text in a few sentences.
<bot>: How many years back should my resume go?  Should I include previous management titles within the company not completely related to the field I want?