Advanced Teletext System User Guide

2 The Teletext Terminal
The Teletext Terminal behaves in the same way as the Teletext section of a
television. However, it also has some extra facilities. Instead of using a remote
keypad you use the BBC Microcomputer's keyboard and function keys. The
function key strip should be placed above the red function keys when using the
Terminal.
2.1 Enter the Terminal
To select the Teletext Terminal, type *TELETEXT and press RETURN. BBC1
CEEFAX is selected by default and the initial page is displayed once it has
been received. This initial page is usually an index to the service.
At the top of the screen you will see a line of text which is constantly
changing. This consists of :
The channel title, or page number selected
The name of the Teletext service (e.g. CEEFAX )
The page number indicator, which displays the page number of the page
presently being transmitted
The date and time
2.2 Leave the Terminal
To leave the Terminal, press f9.
If you are using a co-processor (e.g. 6502 second processor, etc.), this will
return you to the language or application that you called Teletext from.
Normally, any programs, or data, will remain intact. If you are not using a coprocessor,
pressing f9 will start BASIC; any programs, or data, will be lost.
The BREAK key
In order to work properly with different co-processors, the Terminal does not
start up as a language if you are using a co-processor. This means that if you
press BREAK, you will leave the Terminal and you will return to the previous
language, or application. On systems without co-processors, pressing BREAK
will re-initialise the Terminal, and clear any 'kept' pages (see Section 2.11).
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