overhead

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overhead

Nautical the interior lining above one's head below decks in a vessel

overhead

[′ō·vər‚hed]
(chemical engineering)
Pertaining to fluid (gas or liquid) effluent from the top of a process vessel, such as a distillation column.
(computer science)
The time a computer system spends doing computations that do not contribute directly to the progress of any user tasks in the system, such as allocation of resources, responding to exceptional conditions, providing protection and reliability, and accounting.
(industrial engineering)
fixed cost

overhead

(1)
Resources (in computing usually processing time or storage space) consumed for purposes which are incidental to, but necessary to, the main one. Overheads are usually quantifiable "costs" of some kind.

Examples: The overheads in running a business include the cost of heating the building. Keeping a program running all the time eliminates the overhead of loading and initialising it for each transaction. Turning a subroutine into inline code eliminates the call and return time overhead for each execution but introduces space overheads.

overhead

(communications)
information, such as control, routing, and error checking characters, that is transmitted along with the user data. It also includes information such as network status or operational instructions, network routing information, and retransmissions of user data received in error.

overhead

(3)
Overhead transparencies or "slides" (usually 8-1/2" x 11") that are projected to an audience via an overhead (flatbed) projector.

overhead

(1) The amount of processing time used by system software such as the operating system, database manager or network protocols.

(2) In communications, the additional codes transmitted for control and error checking, which take time to process.
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References in periodicals archive ?
I was able to clearly see changes and manage those overheads and costs whose percentages changed.
If Overheads Percentage is an important indicator of financial health, how can you improve it?
Overheads heading over the top? correctly managing your overheads is the key to the financial health of your business. Sue Hirst explains
These items, combined with the traditional overhead projector, are used for presentations of quality data to the medical staff and the board of directors.
Formatting and presenting quality data to medical staffs and hospital boards
Understanding overhead, or information work, requires a step-by-step approach.
Ford management aggressively tackled the issue of management overhead in the late 1970s and early 1980s.
Information technology - should you curtail your investment?
PHILADELPHIA -- The overhead costs involved in clinical trials represent significant expenses that can vary widely across the globe.
TTC Finds Differing Overhead Rates by Regions of the World
However changes to overhead often slip under the radar.
Raised your prices lately? Amanda Watt shows you how to factor overhead costs into your pricing
description of the basic structure of the STM-1frame including the number and location of payload and overhead bytes and an explanation of the standard (ITU-T) method of representing the frame structure.
Understand the Fundamental Principles of Synchronous Digital Hierarchy in Modern Broadband Networks
function of those STM section and path overheads used by ATM equipment.
Discover the Principles and Potential of SDH Networks
Accent Presentations is a business graphics service bureau dedicated to quality output of 35mm slides, slide duplication, digital color prints and overheads, color posters, trade show signage, conference signs, E6 film processing and camera work.
Accent Presentations introduces the Sienna FotoPrint 2000 for digital output to color overheads and prints
1, 1995--Due largely to their relative low cost, ease of use, and user flexibility, the overhead projector will continue to serve communications professionals as the workhorse presentation format for the rest of this decade.
Annual sales of overhead projectors will exceed 500,000 units by the year 2000; In spite of new technologies, the overhead projector will remain the workhorse presentation format for most communications professionals, asserts PLUS Corporation of America
While overhead projectors can cost as little as $100, the cheapest document camera intended for classroom use is close to $1,400.
Projecting the future: same dead frog. Less mess. Document cameras can do a lot more than you'd think. They can allow a class of students to see a live dissection of a frog while keeping their hands clean

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