Some Task Manager lore: I’m the Microsoft (Redmond, ’93) developer that wrote TaskMgr at home in my den in about 1994 and then the NT silverback devs let me check it into the main tree even though I was a greenhorn at the time. So that meant I got to bring it into work and polish it up and make it an official part of Windows, where it remains to this day. So I got to define my own day job, actually, which was nice! I don’t know if it’s still like that, but great culture and people.
This is all based on XP, as I left long ago, but it’s still the same core app underneath.
What follows is an incredibly useful list of hidden features of the Windows Task Manager.