1. [techspeak] Spurious characters due to
electrical noise in a communications link, especially an RS-232
serial connection. Line noise may be induced by poor connections,
interference or crosstalk from other circuits, electrical storms,
cosmic rays, or (notionally) birds crapping on the phone
wires. 2. Any chunk of data in a file or elsewhere that looks like
the results of line noise in sense 1. 3. Text that is
theoretically a readable text or program source but employs syntax
so bizarre that it looks like line noise in senses 1 or 2. Yes,
there are languages this ugly. The canonical example is TECO;
it is often claimed that "TECO's input syntax is indistinguishable
from line noise." Other non-WYSIWYG editors, such as Multics
qed and Unix ed, in the hands of a real hacker, also
qualify easily, as do deliberately obfuscated languages such as
INTERCAL.
