The Absolute Beginners Guide To Amos
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                                 Chapter Six
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In this chapter I think it`s necessary to have a brief look back at all of
the commands we have covered so far.

I think you will be surprised at just how much you have learnt already.  
Below is roughly what your note book should look like, but more detailed.  
You have been taking notes haven`t you?

Please note the following is not a program.

:          : A colon, used to separate commands on one line

`          : Apostrophe, similar use as REM but only at the start of a line

$          : denotes a string e.g. A$  F$  FRED$  GO$

CURS OFF   : Turn the text cursor off

CURS ON    : Switch the text cursor on

CLS N      : Clear the screen using the colour N (0-15 default)

DEC        : Subtract 1 from a variable e.g. DEC A

EDIT       : Return to the EDITor from your program

FSEL$ etc. : Call up the Amos file selector for the user to load/save a file

FOR NEXT   : A looping structure, executes commands in-between FOR and NEXT

HIDE       : HIDE the mouse pointer from view

IF THEN    : IF a statement is true THEN execute the following commands

INC        : Add 1 to a variable e.g. INC A

LINE INPUT : Receive text or number INPUT from keyboard as a variable

LOAD IFF   : LOAD an IFF picture from disk

PAPER N    : The background colour of any text PRINTed onto the screen

PRINT      : PRINT "TEXT"   PRINT variable  or PRINT variable$

REM        : Short for REMark, used to add comments to listings. See also `

Variable   : A name holding a value that can be changed e.g. A=10

Variable$  : A name for holding a string of characters e.g. "TEXT12345£%"

WAIT KEY   : WAIT for the user to press any KEY before continuing


If at this stage you fully understand half or more of the above then you are
doing extremely well. If you think you understand less than half then re-read
the previous chapters and look in your Amos manual for more info.

The first version of Basic I tried to learn was on the Commodore Vic 20, 
remember that great machine? Anyway the Vic 20 came with a programming 
course on audio tape as well as a programs tape and on the audio tape was a 
spoken quiz to test yourself on what you should have previously learnt from 
the course.  This really helped me to learn a lot more than just reading 
about it.  We don`t have an audio tape with this course so we will have to 
make do with you reading it out to yourselves. I suppose I could of got Amos
to read out the questions to you, but those commands come in a later chapter.
By the way you can use your notes if you wish. 

So, without further ado, here is the first of our Absolute Beginners Quizzes.

Q1 . What does the N in CLS N stand for?

  a) Nothing
  b) A colour number 
  c) Node activated


Q2 . What does the PAPER command effect?

  a) The background colour of any text printed
  b) The foreground colour of any text printed
  c) The actual colour of any text printed


Q3 . What is the opposite command to HIDE?

  a) Seek        
  b) Slide
  c) Show


Q4 . What is wrong with the following line?   
     PRINT "HELLO

  a) The second quote mark is missing
  b) The first quote shouldn`t be there
  c) You cannot PRINT the word HELLO


Q5 . What is the WAIT KEY command waiting for the user to press? 

  a) The Mouse 
  b) Any key
  c) The Joystick


Q6 . What type of variable is A$?

  a) A string variable
  b) A numerical variable
  c) A transitional coagulating dot matrix turbo vector variable


Q7 . What does the LOAD IFF command achieve?

  a) Loads an IFF picture
  b) Erases an IFF picture
  c) Saves an IFF sample


Q8 . If A=5 and the next line reads, A=A+7, what does A now equal?

  a)  5
  b) 12
  c) -5

Q9 . What would the value of A be after the following lines?
     A=1     
     IF A=1 THEN  DEC A 

  a) 0
  b) 1
  c) 2


Q10. What is wrong with the following line?
     PRINT "HELLO": REM just a remark here  :PRINT "AMOS"

  a) The word AMOS won`t be printed because of the REM
  b) Hello will never be printed because of the REM
  c) The REM will be printed
     
Mark down a, b or c for each answer and check them against the answers given
in chapter seven.

                             End of chapter six
                             ^^^^^^^^^^^^^^^^^^