Originally posted by pacharan
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Reply to: Dear Ceefax....
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Previously on "Dear Ceefax...."
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Enjoy an evening of Ceefax from October 1983
"The raw data for these pages was saved to tape drive by Mark Cook who wrote software to recover the data and save it to PC. He then e-mailed the individual frames to TTAN where I decoded it into Videotex, corrected any errors and converted them to GIF files. The HTML interface was contributed by David Bennett. We hope they bring back a few memories for you."
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personally I still think its leagues ahead of this red button crap.
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Originally posted by SimonMac View PostYes I know the difference, I was just commenting the fact that it wasn't a Ceefax designer, it was Teletext, IIRC the picture is also about 10 years old as Digitiser ended in 2003
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Originally posted by Diver View PostCeefax (phonetic for "See Facts") is the BBC's teletext information service transmitted via the analogue signal, started in 1974 and run until April 2012
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Originally posted by SupremeSpod View Post
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Originally posted by NickFitz View PostCeefax is the reason BBC journalists have to limit their headlines to 33 characters max: BBC - The Editors: Changing headlines but, as that technology is phased out, they have to continue to do so to cater for mobile devices.
Many years ago I worked on the embedded software for Teletext transmission systems. It was written in Forth for the most part; a lot of the boxes were 6809 based and so used 6809 ASM for stuff like the interrupt handler to stuff the FIFO output buffer when the VBI came around.
That company was also the creator of full-field Teletext, where the entire frame was used, allowing for faster page turnaround: those systems were installed in just about every railway station and airport in the land, and also abroad. A mate of mine wrote the system for Dublin Airport, which then ran 24/7/365 for at least three-and-a-half years without a single error - after that he left the company so doesn't know if it ever errored before being decommissioned
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Ceefax is the reason BBC journalists have to limit their headlines to 33 characters max: BBC - The Editors: Changing headlines but, as that technology is phased out, they have to continue to do so to cater for mobile devices.
Many years ago I worked on the embedded software for Teletext transmission systems. It was written in Forth for the most part; a lot of the boxes were 6809 based and so used 6809 ASM for stuff like the interrupt handler to stuff the FIFO output buffer when the VBI came around.
That company was also the creator of full-field Teletext, where the entire frame was used, allowing for faster page turnaround: those systems were installed in just about every railway station and airport in the land, and also abroad. A mate of mine wrote the system for Dublin Airport, which then ran 24/7/365 for at least three-and-a-half years without a single error - after that he left the company so doesn't know if it ever errored before being decommissioned
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I miss it too. It was so simple. Hit the text button on your remote then 101 for news and 301 for sport.
The red button doesn't do it for me :
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