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1980's DIY C64 Light Interface

Robot Building and Competition Videos
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Robot Building and Competition Videos

This is an extract from an episode of '4 Computer Buffs' which was a computer software and hardware program broadcast in the 80's by Channel 4 Television in the UK. It shows Dr Mike Throne constructing a light reciever module for the Commodore 64, which allowed you to recieve software bradcast throughout the programmeA light reciever was placed on the TV over the top of a flashing dot that appeared at different times throught the programme, you then pressed record on your tape player and downloaded the softwareVery clever idea that involved some nice DIY hardware building....To find out more about this project and many others then please visit www.hack247.co.uk

Channel: Howto & Style
Uploaded: September 12, 2006 at 9:34 pm
Author: hack247

Length: 05:24
Rating: 4.82
Views: 16639

Tags: c64  commodore  diy  electronics  hack  hack247  hacking  phreaking  schematics  technology  

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Video Comments

arejay72 (July 11, 2008 at 10:43 pm)
incredible. I can't believe someone uploaded this. Brilliant. Does anyone have a retriggerably monotstable I could borrow?
ExtraTerrestrials (January 31, 2008 at 6:32 am)
omg genius
stevebasset (January 29, 2008 at 8:41 pm)
I remember this when it was originally broadcast. I wonder how many people actually tried it?
rudyiking (November 23, 2007 at 1:21 pm)
I bought a cheapo pda keyscain fob, that had a twist end to enter data, kinda crude. However you could download a free bit of software that would do just this. You would enter contacts and such, hold it up to the monitor and it would "upload" you data. I think it was about 4-6 years ago.Also reminds me of ;CueCat. They wanted to send a little audio code that would open your browser to a website about what the program was talking about.
prokkets (October 3, 2007 at 7:46 am)
Wow this is antisemite terrorist propaganda.We need 2fight the iranins in iran so we dont have 2fight them here.Ulibs need 2b detained untl ucan prove u r not a terorist.If any iraqi tries 2take myFREEDOM I will blowup his cave cmd centr.IranNchina hve been stckpling WMDs2 use aginst us an our Israeli friends in th form of a mushroom cloud in th global wr n terror.When the market crash+bio/nuke battle comes we need world govt.+world bank+hive mind+every1 get microchip so prs bush cn keep us safe
lordsigma (July 11, 2007 at 9:44 pm)
That was a great idea ! here in Argentina we had a radio program that transmitted via audio C64 programs. You just tune the radio and pressed record to "download" software.
phantom187 (June 11, 2007 at 3:05 pm)
tat is just too cool! from Texas
maraz666 (June 6, 2007 at 10:38 am)
It's the 80's, this was never intended to push out podcasts, just programs - they don't take that much space.Music is possible though, just not as waveform audio, but rather as programs. You'd be amazed what people can fit into just four kilobytes. Google for "4k intro" and check the first scene dot org link.
coondogtheman1234 (May 7, 2007 at 3:56 pm)
Yeah I didnt think so, but was a good idea, maybe they could build a bigger sensor and have a bigger light point on the tv which sends a flashing data points on different areas of the dot, I dunno well if ur gonna spend tons of $ on that you can just go out and get DSL or something lol
carpii (May 6, 2007 at 3:23 pm)
The max data rate using this method, on a standard UK tv is 50 bytes a second. Thats with a 0% error rate and perfect syncing (which seems unlikely).If you now say an average podcast is, lets say, 5Mb, it would take over 27 hours to download a single podcast via this method. Nice idea, but I dont think its gonna work :-))


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