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(computer science)
Describing equipment not connected to a computer, or temporarily disconnected from one.
A condition existing when the drive rod of the drill swivel head is not centered and parallel with the borehole being drilled.
A borehole that has deviated from its intended course.
A condition existing wherein any linear excavation (shaft, drift, borehole) deviates from a previously determined or intended survey line or course.
(industrial engineering)
State in which an equipment or subsystem is in standby, maintenance, or mode of operation other than on-line.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


(Or "offline")

1. Not directly connected to the computer (e.g., an off-line tape drive), or with connection suspended ("take the printer off-line").

Contrast background, on-line.

2. Not now or not here. "Let's take this discussion off-line." Specifically used on Usenet to suggest that a discussion be moved off a public newsgroup to e-mail.

See also off-line world.
This article is provided by FOLDOC - Free Online Dictionary of Computing (


(1) A computer or mobile device that is not connected to the Internet or internal network. If a printer, scanner or external storage drive is physically connected to the computer but not turned on or is not in ready mode, the device is said to be offline as well. From the 1960s through the 1980s, disk packs and tape cartridges that were demounted and stored in the data library were also considered offline. Contrast with online. See offline file.

(2) "Not with it." Slang for someone who is uninformed. See 404.
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References in periodicals archive ?
Scenarist Off-Line is based on the popular "on-line/off-line" video-editing model in which a low-cost "off-line" tool is used for the time-consuming development process.
Today, the mainstream of the off-line digital storage marketplace is magnetic recording technology; this situation appears likely to remain the case until DVD recording technology has multiple vendors and a substantial customer base.
Not all off-line readers follow this advertising-driven model, but it has proved successful for Freeloader, which now boasts more than 100,000 downloads since May.
SATA is also the best choice for Tier 3 (off-line) given the need that government regulations such as Sarbanes-Oxley and HIPAA have imposed on search and retrieval of company records containing both structured and unstructured data.
The heart of the study involved an activity-based costing analysis of the various payment options, which confirmed that credit and off-line debit (the so-called check cards) are the most expensive options for retailers.
We capture all the data customers provide through the Internet -- or through any conventional source -- and place it into a sophisticated information system providing companies the means to analyze consumer behavior, develop and execute tailored marketing offerings, as well as track responses, in on-line and off-line environments," Helle said.
"Off-Line Winding and Slitting Assembly" for master rolls type 645-02
Publications can be wound onto MultiDisc discs using mobile unwinding stations in off-line mode and one winding station, both on line and off line Two QuattroPack lines will be equipped with PRA-PC control, topsheet production and application, underwrapping and cross strapping.
While the off-line metallographic examination of a solidified aluminum sample can provide an indication to the foundry's adherence to process control, foundrymen must be aware if its melt meets certain cleanliness standards before pouring.
"The amount of time you spend running your business off-line is about how much time you spend running a BBS online," says Cary Harwin, co-author of How to Successfully Run a BBC for Profit.
Three of these off-line chunks lie near the brightest fragment and were also seen -- though less clearly -- in pictures taken by Hubble last July.