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- A Brief Explanation
-
- The document that you are about to read is a Black Magic created Hypertext
- document. The purpose of this short prelude is to introduce you to the
- concepts of hypertext if you don't know them, and to teach you how to read
- hypertext if you don't know. If you do know this information, please go to
- the end of this document and activate the Link there.
-
- Hypertext is based on the concept of "Expanding Information". With hypertext,
- blocks of information (text or graphics) can be linked to other blocks of
- information. Once two blocks of information have been linked together, they
- provide an instant "gateway" to the other. This is the expanding information
- nature of hypertext. A single block of information can lead to another and so
- on. Information can literally expand at the user's request.
-
- Black Magic
-
- Black Magic is a product to create Hypertext documents similar to the above
- description. With Black Magic documents, information can be linked in three
- different ways; with Note Links, Reference Links, and Replacement Links. A
- Note Link calls up a small window on screen that contains a "note" to the
- user. A Reference link is used to transport the reader to Another place in
- the document. Replacement Links are used to swap one block of information for
- another. Graphic Links are used to make a graphic image a Link Originator.
- Although Graphics can be any of the three types of Link, only the one symbol
- below is used to indicate this. All Links are indicated through the use of
- colored symbols embedded in the text. The symbols surround the Link
- Originator (See Below). Hypertext Links are indicated through the following
- symbols:
-
- Note Link Yellow Diamonds
- Reference Link Green Triangle
- Replacement Link Pink Square
- Graphic Link Blue Circle with a "X" in the Center
-
-
- Terminology
-
- Link Originator - The starting point to the link. It is surrounded by the
- symbols to indicate that it is a hypertext link.
- Link End - The other side to a Link originator, where reader is taken after a
- link is traversed.
- Traverse - The act of traveling from a Link originator to its associated Link
- End.
-
- Reading A Document
-
- A Black Magic document is read through the use of the reader programs. Three
- of these reader programs exist:READEGA.COM (For the Enhanced Graphics
- Adaptor), READHGA.COM (For the Hercules Graphics Adaptor), AND READCGA.COM
- (For the Color Graphics Adaptor). To use one of the Reader program to read a
- Black document, type the following from the DOS prompt:
-
- READXYZ filename.mag
-
- Once the document is in the Reader program, it is read using the following
- keys:
-
- Traverse Link <F1>/Left Mouse Button pressed between the
- symbols
- Return from Link <Esc>/Right Mouse Button pressed anywhere
- in the Link
- Movement <ArrowKeys>, <PgUp> & <PgDn>/Mouse
-
- When you are reading a document, and you come across a hypertext Link in the
- text, move the cursor between the symbols and press <F1>. This will activate
- the Link, traversing you to the Link End. To return from the Link End pres
- <Esc>. This will bring you one link back from your current position.
-
- When you come across a hypertext link in a Graphic, move the cursor over the
- Graphic Link (Circle with an "X") and press <F1> to traverse the Link.
-
- And that's about all you need to know to read a hypertext document. Press
- <F1> between the Symbols below to continue with the document.
-
- Press <F1> Here (Anywhere between the symbols)
-