JargonFile/original/html/O/off-the-trolley.html
2014-03-27 18:54:56 +00:00

17 lines
2.9 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<html xmlns="http://www.w3.org/1999/xhtml"><head><title>off the trolley</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../O.html" title="O"/><link rel="previous" href="octal-forty.html" title="octal forty"/><link rel="next" href="off-by-one-error.html" title="off-by-one error"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">off the trolley</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="octal-forty.html">Prev</a> </td><th width="60%" align="center">O</th><td width="20%" align="right"> <a accesskey="n" href="off-by-one-error.html">Next</a></td></tr></table><hr/></div><dt><a id="off-the-trolley"/><dt xmlns="" id="off-the-trolley"><b>off the trolley</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">adj.</span></dt></dt><dd><p> Describes the behavior of a program that malfunctions and goes
catatonic, but doesn't actually <a href="../C/crash.html"><i class="glossterm">crash</i></a> or abort. See
<a href="../G/glitch.html"><i class="glossterm">glitch</i></a>, <a href="../B/bug.html"><i class="glossterm">bug</i></a>,
<a href="../D/deep-space.html"><i class="glossterm">deep space</i></a>, <a href="../W/wedged.html"><i class="glossterm">wedged</i></a>.</p><p>This term is much older than computing, and is (uncommon) slang
elsewhere. A trolley is the small wheel that trolls, or runs against, the
heavy wire that carries the current to run a streetcar. It's at the end of
the long pole (the trolley pole) that reaches from the roof of the
streetcar to the overhead line. When the trolley stops making contact with
the wire (from passing through a switch, going over bumpy track, or
whatever), the streetcar comes to a halt, (usually) without crashing. The
streetcar is then said to be off the trolley, or off the wire. Later on,
trolley came to mean the streetcar itself. Since streetcars became common
in the 1890s, the term is more than 100 years old. Nowadays, trolleys are
only seen on historic streetcars, since modern streetcars use pantographs
to contact the wire.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="octal-forty.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../O.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="off-by-one-error.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">octal forty </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> off-by-one error</td></tr></table></div></body></html>