challenge. and yeah, i could have gone for something more recent, but i figured if you like endtroducing and haven't heard this, you will probably appreciate it.
the bad news is that, despite growing up with pc's and having had some level of troubleshooting skill as a result, i have forgotten most of it in the last 10 years as computing/tech has become pushy and handholdy. i suspect this is not uncommon.