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I don't think I'm particularly old (only in my 40s) but I'm old enough to have made presentations with transparent sheets on an overhead projector. I don't quit

I don't think I'm particularly old (only in my 40s) but I'm old enough to have made presentations with transparent sheets on an overhead projector. I don't quite remember how I prepared those sheets (I want to say a printing tracer?).

dalai 3y ago
I think I remember using an inkjet printer for that. If I remember correctly, the sheets had a white margin on one of short edges.
wanderingstan 3y ago
In my school, there was a copier that’s could copy onto a transparency. Also, early laser printer ads would promote that they could print onto transparencies. My HS teacher had elaborate combinations of transparencies that he would layer on top of each other. The upper layers containing hand-drawn marker annotations.
tgv 3y ago
Bit older. For my first presentations, I drew on them with markers. I've still got one where I inserted a Snoopy cartoon by hand. But later, you could photocopy them, or put them in a laser printer (assuming you had one).
baz00 3y ago
I still do a "virtual" version of this with GoodNotes on an iPad and Zoom. It feels better than using Powerpoint.
ghaff 3y ago
They were often just typed/handwritten and copied onto transparencies for internal/academic stuff. It was also pretty common to use HP pen plotters for quite a while when I was working in the late 80s/90s. We had 35mm slides for customers but that was frequently an exercise in: "Here's our roadmap but this has changed and this isn't correct" because it took effort and time to get changes made once the slide was created.
codetrotter 3y ago
> old enough to have made presentations with transparent sheets on an overhead projector I’m in my early thirties and we sometimes used transparent sheets on overhead projector too when I was in school. Although in our case we made the sheets with the computer (Microsoft Word, Paint, etc) and they gave us transparent sheets that we put in the printer. I remember that the ink on the transparent sheets would smudge if we touched it, which sometimes accidentally happened when we handled our transparent sheets. Even in high school I sometimes saw teachers use overhead projection with transparent sheets. One of my math teachers in high school brought a special device with him one day. This one https://www.calculatorsource.com/ti-89titanium-vs.html https://www.calculatorsource.com/ti-89titanium-vs.html (or some other model by TI). It’s an external screen that you connect to a TI graphing calculator and then put it on top of the glass plate of an overhead projector so that you can project what the calculator is showing for everyone to see :)
deleted 3y ago
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dalai 3y ago

I think I remember using an inkjet printer for that. If I remember correctly, the sheets had a white margin on one of short edges.

wanderingstan 3y ago

In my school, there was a copier that’s could copy onto a transparency. Also, early laser printer ads would promote that they could print onto transparencies. My HS teacher had elaborate combinations of transparencies that he would layer on top of each other. The upper layers containing hand-drawn marker annotations.

tgv 3y ago

Bit older. For my first presentations, I drew on them with markers. I've still got one where I inserted a Snoopy cartoon by hand. But later, you could photocopy them, or put them in a laser printer (assuming you had one).

baz00 3y ago

I still do a "virtual" version of this with GoodNotes on an iPad and Zoom. It feels better than using Powerpoint.

ghaff 3y ago

They were often just typed/handwritten and copied onto transparencies for internal/academic stuff. It was also pretty common to use HP pen plotters for quite a while when I was working in the late 80s/90s. We had 35mm slides for customers but that was frequently an exercise in: "Here's our roadmap but this has changed and this isn't correct" because it took effort and time to get changes made once the slide was created.

codetrotter 3y ago

> old enough to have made presentations with transparent sheets on an overhead projector I’m in my early thirties and we sometimes used transparent sheets on overhead projector too when I was in school. Although in our case we made the sheets with the computer (Microsoft Word, Paint, etc) and they gave us transparent sheets that we put in the printer. I remember that the ink on the transparent sheets would smudge if we touched it, which sometimes accidentally happened when we handled our transparent sheets. Even in high school I sometimes saw teachers use overhead projection with transparent sheets. One of my math teachers in high school brought a special device with him one day. This one https://www.calculatorsource.com/ti-89titanium-vs.html https://www.calculatorsource.com/ti-89titanium-vs.html (or some other model by TI). It’s an external screen that you connect to a TI graphing calculator and then put it on top of the glass plate of an overhead projector so that you can project what the calculator is showing for everyone to see :)

deleted 3y ago

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