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:''Grapevine is now called [[Inform]]. This page is retained for historical purposes.''
Grapevine was the name for YSTV's service of still advertisments and promotions between programmes. The underlying software has been revamped many times, usually to improve graphics.
Grapevine was the name for YSTV's service of still advertisments and promotions between programmes. The underlying software has been revamped many times, usually to improve graphics.


==Versions==
==Versions==
===Dragon===
===Dragon===
The earliest known incarnation was a textual information system called Quaxfax (Ceefax with a campus duck flavour!), and was produced from a Dragon (?) computer.
The earliest known incarnation was a textual information system called Quaxfax (Ceefax with a campus duck flavour!), and was produced from a {{unsure|Dragon}} computer.


===BBC Micro===
===BBC Micro===
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[[Image:TeletextGVine.gif|right|thumb|160px|Society pages from the 1990s]]
[[Image:TeletextGVine.gif|right|thumb|160px|Society pages from the 1990s]]
Old VHS archive tapes from the era which were recorded directly from the network output before a programme started show live evidence of the system, and 5.25" floppies from the [[YSTV archive]] are still perfectly readable despite the continual thrashing that they would have endured as each page was loaded from disc rather than cached in precious RAM.
Old VHS archive tapes from the era which were recorded directly from the network output before a programme started show live evidence of the system, and 5.25" floppies from the [[YSTV Archive]] are still perfectly readable despite the continual thrashing that they would have endured as each page was loaded from disc rather than cached in precious RAM.
 
The software comprised a menu system to select between displaying the Grapevine (normal operation), editing the Grapevine (for new pages), and supervisor mode (for purging old unused pages and other housekeeping). Pages could be scheduled to appear for certain periods of time, periodically, and repeating: for this the BBC Micro required a concept of the day/month/time to be entered at startup.
 
[[Image:NewsBox.png|left|thumb|160px|Rolling news box news]]
In 1994 [[Luke Brown]] added 'Newsbox' functionality which allowed snippets of current news headlines and weather reports to be interspersed with Grapevine pages, news team dedication permitting. Luke's obsession with news was clear, as he went on to work for ITN.


===Amiga version===
===Amiga version===
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