The Sunday Poem: The BASICs of life

10 Dimension all your variables, figure out their sides.
20 Remark, perhaps, on how data twirls across divides.
30 Print a hello world, as if the world could not read cursive;
40 Go to thirty, looped but still printed, not recursive.
50 For once you have some code that doesn’t do much else,
60 Next you’ll want to make it special, of yourself.
70 Data will be read, perhaps, or Fibonacci spun,
80 While you tally figures until the job is done.
90 Poke a byte, peek a bit, nybble ‘til you’re through,
100 End with too few memories, dimensions still unused.