JargonFile/entries/line noise.txt
2014-04-26 15:52:28 +01:00

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line noise
n. 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.