The HP28C had an infrared output, e.g. For printers, but no input. a friend of mine published a book explaining how to connect an IR diode to trigger some unconnected keyboard lines in the calculator. That made it possible to upload programs to the calculator faster. Of course you also needed the matching hack on a PC to send programs. The 48 had IR in both directions.
That reminded me of something - maybe not really a hack per se, but some creative problem solving. I was at a Mac User Group meeting around 2000 or so, and somebody was supposed to do a presentation. Unfortunately, the presentation was on one laptop, and the projector was on another. Now, in many cases over many years, this is basically a non-issue - there are usually several ways to transfer files. Unfortunately, because of the laptops involved (maybe a PowerBook 5300 and a PowerBook G3?), the options were
HP28C infrared input (Score:4, Interesting)
The HP28C had an infrared output, e.g. For printers, but no input. a friend of mine published a book explaining how to connect an IR diode to trigger some unconnected keyboard lines in the calculator. That made it possible to upload programs to the calculator faster. Of course you also needed the matching hack on a PC to send programs. The 48 had IR in both directions.
Re: (Score:3)
That reminded me of something - maybe not really a hack per se, but some creative problem solving. I was at a Mac User Group meeting around 2000 or so, and somebody was supposed to do a presentation. Unfortunately, the presentation was on one laptop, and the projector was on another. Now, in many cases over many years, this is basically a non-issue - there are usually several ways to transfer files. Unfortunately, because of the laptops involved (maybe a PowerBook 5300 and a PowerBook G3?), the options were
Re:HP28C infrared input (Score:2)
Awesome :) he could've completely recreated the presentation in the mean time, but this is much cooler :)