I have worked in the IT industry for over 20 years. In this time, I have covered many areas of work.
My initial area for training was for Computer Aided Design, this covered all areas of design that a computer is used for.

This included ...

Image manipulation (Photoshop)
Draughting Software (Autocad)
3D Modelling (3D StudioMAX)
Desktop Publishing
Web Design
Product Visualisation
Architectural Visualisation
General 3D Modelling
Logo Design

In subsequent employment I also became proficient in computer networks and PC maintenance, including custom building computers for specific use cases.
For many years I have been building 3d models for military simulation and as such I would recommend visiting www.SimutecSystems.com for your simulation needs.