broken arrow /n./ [IBM] The error code displayed on line 25
of a 3270 terminal (or a PC emulating a 3270) for various kinds of
protocol violations and "unexpected" error conditions (including
connection to a down computer). On a PC, simulated with
`->/_', with the two center characters overstruck.
Note: to appreciate this term fully, it helps to know that `broken
arrow' is also military jargon for an accident involving nuclear
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