An IWB is a large format screen used, primarily, in Education scenarios.
Before the phones and the tablets, before the VR kits and Paint 3D, there were a number of computers I used to create graphics on. As a child I did own a ZX 81 and Spectrum but it was only when the Amiga and Atari ST came around that I started to dabble in computer art. In time it was PC and Apple with a range of applications, primarily 2d, that I created artwork on. Sometimes as part of my teaching practice, sometimes for more personal work. Sometimes just for play, just to see what some of the buttons would do.
If I had to pick only one?
This one: The Vengeance of the Demonic Dustmite. Created on iMac laptop using Adobe Photoshop…. 5? 6? Immediately loved the process and the outcome (and in fact have taught all of my students how to make it over the past number of years) and won a silver submission award in a Photoshop Now monthly competition.