My favourite and most accessible piece of old technology is the humble Laserdisc!<br>I like it's modern cultural significance, in that you can get titles as recently released as 2000, yet it clearly marks a time before digital and before CD's. Yes, the discs are read by a laser but the information it reads from the disc is a totally analogue broadcast quality signal. So, you can sprinkle as much confetti around your scene and suffer NO compression artifacts. It's wonderful!