And now for a little bit of magic...

[Halvar]

... in 1982:

[elecplus]

Nifty! IBM had a "light pen" for some of their early terminals. I have one here somewhere, but I can't lay my hands on it just now...

[andrewjoy]

Ahh the days when you could say photo diode on TV and expect your audience to know what it is.

[mr_a500]

Nifty! IBM had a "light pen" for some of their early terminals. I have one here somewhere, but I can't lay my hands on it just now...

You mean like these?

2250-ad.gif

IBM light pen.jpg

IBM lightpen vector.jpg

[Muirium]

Light pens were all the rage for a while. I remember having one on an early system my family had, maybe the Commodore VIC=20. A little later on, the Nintendo Scope was a variation on the same idea. CRTs are slow, and you can capture them fairly easily.

[Daniel Beardsmore]

I am not sure what the coolest part of this is:

[the1onewolf]

OH so this is how starfleet wrote on their exploding panels.