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 ====== BASIC Programming Examples ======
-There are many statements available to you in BASIC, but here are a few that can get you started and will work across many BASIC interpreters.  Check out the BASIC Reference Manuals section below for all the statements available for a particular system.  Statement names and syntax can vary a bit. These examples are run on the [[TOPS-20]] system on the [[xkl_toad-2|XKL Toad]] using the Stanford LOTS BASIC interpreter.
+There are many statements available to you in BASIC, but here are a few that can get you started and will work across many BASIC interpreters.  Check out the BASIC Reference Manuals section below for all the statements available for a particular system.  Statement names and syntax can vary a bit. These examples are run under [[unix_survival|UNIX System V]] on the [[at_t_3b2_1000-70|AT&T 3B2 1000-70]] using the Bell Labs BASIC interpreter, but are generic enough to run on any of the BASIC systems available.
+      UNIX System V  R.3 (WINS) (lcm3b2)
+     login: lcm
+     Password: LCMguest
+     UNIX System V Release 3.2.2 AT&T 3B2
+     lcm3b2
+     Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+     All Rights Reserved
+     $ basic
+     * REM *** BASIC will evaluate 2+2 to give us 4
+     *print 2+2
+
+     * REM *** The variable 'a' defaults to the value of '0'
+     *print a
+
+     * REM *** LET assigns the value of '1' to the variable 'a' and 'print a' gives us '1'
+     *let a=1
+     *print a
+
+     * REM *** STRINGS are quoted in BASIC and to use a variable as a string, just append '$' to it
+     *print "Hello World!"
+     Hello World!
+     * let a$ = "Hello World!"
+     * print a$
+     Hello World!
+     * REM *** Now let's write it as a program with line numbers
+     *10 print "Hello World!"
+     *20 end
+     * REM *** The LIST command will show us what we typed in
+     *list
+print "Hello World!"
+end
+     * REM *** The RUN command will run our program
+     *run
+     Hello World!
+     * REM *** The NEW command will clear the memory buffer and LIST will show us nothing is there
+     *new
+     *list
+     *
+     * REM *** Lets write a programming using INPUT to assign a VARIABLE N
+     *10 input "What is your name?"; n$
+     *20 print "Hello "; n$
+     *30 end
+     *list
+input "What is your name?"; n$
+print "Hello "; n$
+end
+     *run
+     What is your name?? COMPUTER
+     Hello COMPUTER
+     * REM *** Here is an example of a FOR loop.  The loop is closed with the NEXT statement.
+     * REM *** NEXT I tells BASIC that the variable I is free to be used again.
+     *new
+     *10 for i = 0 to 20
+     *20 print i
+     *30 next i
+     *40 end
+     *run
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+     * REM *** The STEP statement is implied in the FOR loop as "STEP 1" by default
+     * REM *** But you can specify a STEP number - here we STEP by 2
+     * REM *** To replace line 10, just type it in as if it were a new line
+     *10 for i = 0 to 20 step 2
+     *list
+for i = 0 to 20 step 2
+print i
+next i
+end
+     *run
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+     * REM *** Likewise we can run the FOR loop backwards by using a "STEP -1"
+     *10 for i = 20 to 0 step -1
+     *list
+for i = 20 to 0 step -1
+print i
+next i
+end
+     *run
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+     * REM *** Here is an advanced example which will introduce nested FOR loops
+     * REM *** and the function INT (integer) and SIN (sine) to calculate a sine wave
+     *list
+let w = 2
+let h = 20
+let t = 6.28318/h
+let s = 35
+for i = 1 to w
+for j = 0 to 6.38318 - t step t
+let a = int(sin(j) * s + 0.5)
+for k = 1 to s + a
+print " ";
+next k
+print "+"
+next j
+next i
+     *run
+                                        +
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+     * REM *** To return back to UNIX, type the command "SYSTEM"
+     *system
+     $
+====== BASIC Reference Manuals ======
+Visit our repository for [[https://livingcomputers.org/Computer-Collection/Online-Systems/User-Documentation.aspx|User Documentation for Online Systems]] for formal user and reference manual.
-====== BASIC Reference Manuals ======
-  * Control Data Corporation BASIC(([[http://bitsavers.trailing-edge.com/pdf/cdc/cyber/lang/basic/19980300B_BASIC_Language_Version_2_Reference_Nov74.pdf|CDC Basic v2 Reference]]))

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