Borders cropped from the Getting Started screenshots.

beginninginbasic.tex

@@ -72,7 +72,7 @@ \section{Your first BASIC programmes}
   line of input you have typed.  When you do this, you should see a message something
   like the following:
 
-\screenshotwrap{images/syntax-error.png}
+\screenshotwrap{images/getting-started/syntax-error.png}
 
   If you saw a \screentextwide{SYNTAX ERROR} message something like that one, then congratulations:
   You have succeeded in communicating with the computer!\index{Errors!Syntax}\index{SYNTAX ERROR}
@@ -118,7 +118,7 @@ \section{Your first BASIC programmes}
                 % following screenshot
 Hopefully now you will see something like the following:
 
-\screenshotwrap{images/print-hello-computer.png}
+\screenshotwrap{images/getting-started/print-hello-computer.png}
 
   This time no new \screentextwide{SYNTAX ERROR} message should appear. But if some kind
   of error message has appeared, just try typing in the command again, after
@@ -142,7 +142,7 @@ \section{Your first BASIC programmes}
                 % following screenshot
   You can try it, if you like, and you should see something like the following:
 
-  \screenshotwrap{images/print-hello-computer-no-quotes.png}
+  \screenshotwrap{images/getting-started/print-hello-computer-no-quotes.png}
 
   In the above examples we typed commands in directly, and the computer executed
   them immediately after you pressed the \specialkey{RETURN} key.  This is why
@@ -172,7 +172,7 @@ \section{Your first BASIC programmes}
                 % following screenshot
 When you have done this, the screen should show something like this:
 
-\screenshotwrap{images/first-steps-for-loop-programme-1.png}
+\screenshotwrap{images/getting-started/first-steps-for-loop-programme-1.png}
 
 If it doesn't you
 can try again. Don't forget, if you feel that the computer is getting all muddled up,
@@ -237,7 +237,7 @@ \section{Your first BASIC programmes}
 So just type in the word \screentextwide{RUN} and press the \specialkey{RETURN} key.  You should then see a display
 that looks something like the following:
 
-\screenshotwrap{images/first-steps-for-loop-programme-1-running.png}
+\screenshotwrap{images/getting-started/first-steps-for-loop-programme-1-running.png}
 
   You might notice a couple of things here:
 
@@ -261,7 +261,7 @@ \section{Your first BASIC programmes}
   If you would like to replace any of the commands in the programme, you can type a new line that has the same number as the one you
   wish to change.
 
-\screenshotwrap{images/first-steps-for-loop-programme-1-listing.png}
+\screenshotwrap{images/getting-started/first-steps-for-loop-programme-1-listing.png}
 
 \needspace{4cm} % Dont allow following paragraph to separate from
                 % following screenshot
@@ -285,7 +285,7 @@ \section{Your first BASIC programmes}
 You can then use the \screentextwide{RUN} command to run the modified
 programme, like this:
 
-\screenshotwrap{images/first-steps-for-loop-programme-1-modified.png}
+\screenshotwrap{images/getting-started/first-steps-for-loop-programme-1-modified.png}
 
 It is quite easy to modify your programmes in this way.  As you become more comfortable with the process, there are two
 additional helpful tricks:
@@ -360,7 +360,7 @@ \section{First steps with text and numbers}
 variable names or strings?  Let's try typing in a variable name, say \screentextwide{N}, and pressing the \specialkey{RETURN} key,
 and see what happens.  And then lets try with a string, say \screentextwide{"THIS IS A STRING"}.
 
-\screenshotwrap{images/typing-variable-name-or-string}
+\screenshotwrap{images/getting-started/typing-variable-name-or-string}
 
 You should get a syntax error each time, telling you that the computer doesn't understand the input you have given it.
 Let's start with when you typed the variable: If you just tell the computer the name of a stored piece of information,
@@ -383,7 +383,7 @@ \section{First steps with text and numbers}
 So if you type \screentextwide{1 ? N}, and then \screentextwide{LIST}, you will see \screentextwide{1 PRINT N}, as we can see
 in the following screen-shot:
 
-\screenshotwrap{images/print-question-mark}
+\screenshotwrap{images/getting-started/print-question-mark}
 
 Like we saw in the last section, the variable \screentextwide{N} has not had a value stored in it, so when the computer looks for
 what is there, it finds nothing.  Because \screentextwide{N} is a {\em numeric variable}\index{variable!numeric}, when there is
@@ -422,7 +422,7 @@ \section{First steps with text and numbers}
                 % following screenshot
 If we try those, we will see something like the following:
 
-\screenshotwrap{images/let-command-examples}
+\screenshotwrap{images/getting-started/let-command-examples}
 
 \needspace{4cm} % Dont allow following paragraph to separate from
                 % following screenshot
@@ -436,7 +436,7 @@ \section{First steps with text and numbers}
   ERROR}\index{Errors!Type mismatch}\index{Type mismatch error} like
 this:
 
-\screenshotwrap{images/type-mismatch-errors}
+\screenshotwrap{images/getting-started/type-mismatch-errors}
 
 This leads us to a rather important point: \screentextwide{N} and
 \screentextwide{N\$} are separate variables, even though they have
@@ -473,7 +473,7 @@ \section{First steps with text and numbers}
   ERROR}\index{Errors!Illegal Direct}\index{Illegal Direct Error}.
 Try it, and you should see something like the following
 
-\screenshotwrap{images/illegal-direct-error}
+\screenshotwrap{images/getting-started/illegal-direct-error}
 
 \needspace{4cm}
 This means that the \stw{INPUT} command can only be used as part of a
@@ -491,7 +491,7 @@ \section{First steps with text and numbers}
 second line will print the string \stw{"YOU TYPED"}, followed by
 what the \stw{INPUT} command read from the user.  Let's try it out:
 
-\screenshotwrap{images/input-example-1}
+\screenshotwrap{images/getting-started/input-example-1}
 
 Did you expect that to happen? What is this question mark doing there?
 The \stw{?} here is the computer's way of telling you that a
@@ -513,7 +513,7 @@ \section{First steps with text and numbers}
 something in, and press the \specialkey{RETURN} key to tell the
 computer that you are done, the programme will continue, like this:
 
-\screenshotwrap{images/input-example-2}
+\screenshotwrap{images/getting-started/input-example-2}
 
 \needspace{4cm}
 Of course, we didn't really know what to type in, because the programme
@@ -533,7 +533,7 @@ \section{First steps with text and numbers}
 expect them to do, and the whole experience will make a lot more sense
 for them:
 
-\screenshotwrap{images/input-example-3}
+\screenshotwrap{images/getting-started/input-example-3}
 
 When we run the programme, we first see the \stw{WHAT IS YOUR NAME} message
 from line 1.  The computer doesn't print the double-quote symbols,
@@ -564,7 +564,7 @@ \section{First steps with text and numbers}
 programme will adapt its output to what we type. Pretty nifty, right?
 Let's have the rest of the crew try it out:
 
-\screenshotwrap{images/input-extra-ignored-1}
+\screenshotwrap{images/getting-started/input-extra-ignored-1}
 
 We can see that each time the programme prints out the message
 customised with the input that you typed in\ldots Until we get to
@@ -597,7 +597,7 @@ \section{First steps with text and numbers}
   first quote marks the start of a new piece of information.  We can
   see the difference it makes below:
 
-  \screenshotwrap{images/input-quoting-1}
+  \screenshotwrap{images/getting-started/input-quoting-1}
 
 \needspace{1.5cm}
 While this can all be a bit annoying at times, it has a purpose: The
@@ -625,7 +625,7 @@ \section{First steps with text and numbers}
 which is not what we meant.  So let's see what it looks like when we
 give \stw{LISTER, 3000000} as input to the programme:
 
-  \screenshotwrap{images/input-multiple-1}
+  \screenshotwrap{images/getting-started/input-multiple-1}
 
   In this case, the \stw{INPUT}\index{INPUT}
   \index{BASIC 65 Commands!INPUT} command reads the two pieces of
@@ -654,7 +654,7 @@ \section{First steps with text and numbers}
 looks if we give this input to our programme:
 
 
-\screenshotwrap{images/input-multiple-2}
+\screenshotwrap{images/getting-started/input-multiple-2}
 
 Until now we have been asking the user to input information by using a
 \stw{PRINT} command to display the message, and then an \stw{INPUT}
@@ -686,7 +686,7 @@ \section{First steps with text and numbers}
 on any line of the screen that is blank.  This will show the revised
 version of the programme.  For example:
 
-\screenshotwrap{images/replacing-line-1}
+\screenshotwrap{images/getting-started/replacing-line-1}
 
 \needspace{3cm}
 We still have a little problem, though: Line 1 will print the message
@@ -704,7 +704,7 @@ \section{First steps with text and numbers}
 We can confirm that the contents of the line have been deleted by
 running the \stw{LIST} command again, like this:
 
-\screenshotwrap{images/deleting-line-1}
+\screenshotwrap{images/getting-started/deleting-line-1}
 
 Did you notice something interesting? When we told the computer to
 make line 1 of the programme empty, it deleted it completely!
@@ -725,7 +725,7 @@ \section{First steps with text and numbers}
 As usual, just type in the \stw{RUN} command and hit the
 \specialkey{RETURN} key.  You should see something like this:
 
-\screenshotwrap{images/input-comma}
+\screenshotwrap{images/getting-started/input-comma}
 
 \needspace{2.5cm}
 We can see our prompt of \stw{WHAT IS YOUR NAME AND AGE} there, but
@@ -741,7 +741,7 @@ \section{First steps with text and numbers}
 \needspace{4cm}
 Now if we run the programme, we should see what we are looking for:
 
-\screenshotwrap{images/input-semicolon}
+\screenshotwrap{images/getting-started/input-semicolon}
 
   \subsubsection{Exercises to try}
 
@@ -889,7 +889,7 @@ \section{Making simple decisions}
 \stw{IF} -- \stw{THEN} command.  If you type in those commands, you
 should see something like the following:
 
-\screenshotwrap{images/if-then-less-than-examples}
+\screenshotwrap{images/getting-started/if-then-less-than-examples}
 
 We can see that only the \stw{PRINT} commands that followed an
 \stw{IF} command that has a true value were executed. The rest
@@ -920,7 +920,7 @@ \section{Making simple decisions}
 can tell us which of the two numbers we give it is biggest, or if they
 are equal:
 
-\screenshotwrap{images/if-compare-variables-1}
+\screenshotwrap{images/getting-started/if-compare-variables-1}
 
 Notice how in this programme, we didn't use fixed numbers in the
 \stw{IF} command, but instead gave variable names instead.  This is
@@ -967,7 +967,7 @@ \section{Making simple decisions}
 using the \stw{IF} command and an appropriate relative operator to
 make each decision.  This works well, to a point. For example:
 
-\screenshotwrap{images/guess-number-1}
+\screenshotwrap{images/getting-started/guess-number-1}
 
 We can see that it prints the message, and it asks for a guess, and
 responds appropriately. But if we want to guess again, we have to use
@@ -1033,14 +1033,14 @@ \section{Making simple decisions}
 sure that you have successfully modified the programme.   You should
 see your modified line with the \stw{Ƴ} symbol in it.
 
-\screenshotwrap{images/guess-number-2}
+\screenshotwrap{images/getting-started/guess-number-2}
 
 \needspace{2cm}
 If you now run the programme by typing in \stw{RUN} and pressing the
 \specialkey{RETURN} key as usual, the 2\textsuperscript{nd} line tells
 the compute to clear the screen before printing the rest of the message, like this:
 
-\screenshotwrap{images/guess-number-3}
+\screenshotwrap{images/getting-started/guess-number-3}
 
 This hides the listing from the user, so that they can't immediately see
 what our secret number is.  We can type our guess in, just like before,
@@ -1084,7 +1084,7 @@ \section{Making simple decisions}
 to 10, 20, \ldots, 60. We can see that this has happened by using the
 \stw{LIST} command:
 
-\screenshotwrap{images/renumber-1}
+\screenshotwrap{images/getting-started/renumber-1}
 
 \needspace{3cm}
 Now our life is much easier: We can choose any  number that is between
@@ -1113,7 +1113,7 @@ \section{Making simple decisions}
 We can type those lines in, and then use \stw{LIST} command to make
 sure the result is correct:
 
-\screenshotwrap{images/guess-number-4}
+\screenshotwrap{images/getting-started/guess-number-4}
 
 That's looking pretty good.  But there are a couple of little problems still.
 Can you work out what they might be? What will happen now after the user makes a guess?
@@ -1184,12 +1184,12 @@ \section{Making simple decisions}
 If you type those lines in, and \stw{LIST} the programme again, you
 should see something like the following:
 
-\screenshotwrap{images/guess-number-5}
+\screenshotwrap{images/getting-started/guess-number-5}
 
 \needspace{4cm}
 We can now \stw{RUN} the programme, and see whether it worked. Let's try it!
 
-\screenshotwrap{images/guess-number-6}
+\screenshotwrap{images/getting-started/guess-number-6}
 
 The screen still clears, which is good.  Can you notice one little
 difference already, though?  There is a blank line above the first
@@ -1207,7 +1207,7 @@ \section{Making simple decisions}
 number.  And after 10 guesses, it stops asking for guesses, and goes
 back to the \stw{READY.} prompt, like this:
 
-\screenshotwrap{images/guess-number-7}
+\screenshotwrap{images/getting-started/guess-number-7}
 
 \needspace{2cm}
 It would be nice to tell the user if they have run out of
@@ -1224,7 +1224,7 @@ \section{Making simple decisions}
 Now if the user doesn't guess the number, they will get a useful
 message, like this:
 
-\screenshotwrap{images/guess-number-8}
+\screenshotwrap{images/getting-started/guess-number-8}
 
 \subsubsection{Exercises to try}
 
@@ -1317,7 +1317,7 @@ \section{Random numbers and chance}
 Each time you type this, it will give a different answer, as you can
 see here:
 
-\screenshotwrap{images/rnd-1}
+\screenshotwrap{images/getting-started/rnd-1}
 
 We can see that this gives us several different results: \stw{1.07870447E-03},
 \stw{.793262171}, \stw{.44889513}, \stw{.697215893}.  Each of these is
@@ -1374,7 +1374,7 @@ \section{Random numbers and chance}
 tell you where it was up to at the time. In the case of the screenshot
 below, it was working on line 10:
 
-\screenshotwrap{images/rnd-2}
+\screenshotwrap{images/getting-started/rnd-2}
 
 \needspace{2cm}
 That works nicely, and draws a very famous maze \cite{montfort201210}.