overhead


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Related to overhead: Overhead Door

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)

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.
References in periodicals archive ?
Last year, WPD engineers responded to more than 370 incidents where members of the public had come into contact with overhead lines while involved in various outdoor pursuits.
Now safety experts at the company are teaming up with the Civil Aviation Authority (CAA) to warn drone users about the risks of flying near overhead power lines and electricity substations.
Accidents happen when anglers are carrying equipment, such as long poles, from the car park to their chosen fishing spot and make contact with overhead lines.
"I think she was doing it to try and be funny and make the passengers laugh." She added that the attendant stayed in the overhead storage "for a solid ten minutes."
Nexus says its engineers have been working around the clock to repair the overhead line at Chillingham Road.
Nexus says its engineers are working around the clock to repair the overhead line at Chillingham Road - a separate overhead line came down near West Monkseaton on Monday morning.
Plaintiff Andrea Sardis, the administrator of Sardis's estate, sued Overhead door alleging negligence, design defect, breach of implied warranty and failure to warn.
In the absence of the overhead bridges, the gaps left in the fences of the Metrobus is the only way to reach the other side.
The structure suffered great wear and tear throughout its life, along with bomb damage in the 1940s, and following a report highlighting around PS2m of repairs, the Liverpool Overhead Railway Company announced the closure in 1955.
Construction of 400kV overhead line between Sohar Freezone and Mahda GS and between 400kV Sohar Freezone and 400kV SIS GS.
Frequent accidents take place daily owing to lack of overhead by-pass at the aforementioned location.
Even worst is the situation at the Jinnah Avenue where not a single out of seven bus stations namely the Katchehri Station, PIMS Station, Saudi-Pak Tower Station, 7th Avenue, Shaheed-e-Millat Station, Parade Ground and the Secretariat have overhead bridges for the pedestrians who have to travel to and from one side of the Blue Area to another on foot.