🚀 go-pugleaf

On Wed, 22 Aug 2018 07:34:48 +0100, AndyW <An...@nojunqmail.com> wrote:
> On 21/08/2018 11:56, Andy Leighton wrote:
>> On Sat, 18 Aug 2018 11:17:56 -0000 (UTC), Ian <${send-direct-email-to-news1021...@jusme.com> wrote:
>>> On 2018-08-17, Andreas Kohlbach <a...@spamfence.net> wrote:
>>>> In this
>>>> <http://www.bbc.com/future/gallery/20180816-do-you-recognise-these-obsolete-technologies>
>>>> BBC article children in the UK between six and 18 years were asked if
>>>> they'd recognize ancient technologies like floppy disks or rotary
>>>> phones. Suppose results in the rest of the world would had been similar.
>>>
>>> Seems like the author wasn't around at the time either...
>>>
>>> "Teletext was the equivalent service on channels such as ITV and Channel 4"
>>>
>>> Teletext was the technology, Ceefax was the BBC version and Oracle was the
>>> commercial one...
>> 
>> Teletext was also widely used in travel agents (usually over X.25) to
>> access tour operator sites to book holidays. That has disappeared
>> completely.
>> 
>
> That looked like teletext but ISTR it was a viewdata service and I still 
> think that it is used today.

> Teletext was a very small subset of prestel pages that was not really 
> interactive but instead allowed the TV to stop on a selected page from a
> continuously looped collection of pages.
> Prestel and the like were fully interactive.

Yep the main difference was interactivity, plus teletext of course only
had a small number of pages (a few hundred)

Teletext and viewdata were more or less compatible - at least the display
codes (for colour, block graphics, etc) were identical AFAICR. Generally 
both viewdata and teletext were mostly dealt with together.

-- 
Andy Leighton => an...@azaal.plus.com
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