The answer appears on the thirty-fifth page of the book.

ViewStore is a general purpose data base management system for Acorn microcomputers. It is supplied by Acornsoft and it is compatible with the word processing package View, the spreadsheet package ViewSheet and the rest of the View range.

And take note of a rather hot spot of that warmy, warmy corner, which is trending as of this writing: the prolific rise of flat design to enhance the user interface.

Anyone with the remotest knowledge of railway signalling knows that it always fails safe.