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A web-based Apple Basic emulator can be found at:

http://www.calormen.com/jsbasic/

I taught some intro programming to my kid using this.

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Source-code to draw a hamburger:

   70 REM draw hamburger 

   80 HGR2:HCOLOR=5

   100 for t = 1 to 50 step 0.01

   140 x = Sin(Tan(t))

   160 y = Cos(t) 

   180 xp = (x * 50) + 150

   190 yp = (y * 50) + 100

   200 HPLOT xp, yp TO xp, yp

   300 next t