# sector

(redirected from sectors)
Also found in: Dictionary, Thesaurus, Medical, Financial.
Related to sectors: Market sectors, Economic sectors

## sector

1. Geometry either portion of a circle included between two radii and an arc. Area: ½r2θ, where r is the radius and θ is the central angle subtended by the arc (in radians)
2. a measuring instrument consisting of two graduated arms hinged at one end
3. Computing the smallest addressable portion of the track on a magnetic tape, disk, or drum store
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

## Sector

(1) A sector in the plane is a region bounded by two rays issuing from an interior point of a figure and by an arc of its boundary cut off by these rays. In particular, a sector of a circle is bounded by two radii and an arc cut off by the radii. The area of a sector of a circle is equal to lr/2 or πr2α /360, where l is the length of the arc, α is the central angle (in degrees) subtended by the arc, and r is the radius of the circle.

(2) A sector in space is the part of a solid bounded by a conical surface whose vertex is in the solid and by the part of the solid’s surface cut off by the conical surface. A spherical sector is an example of a sector in space.

## sector

[′sek·tər]
(computer science)
A portion of a track on a magnetic disk or a band on a magnetic drum.
A unit of data stored in such a portion.
(civil engineering)
A clearly defined area or airspace designated for a particular purpose.
(electromagnetism)
Coverage of a radar as measured in azimuth.
(mathematics)
A portion of a circle bounded by two radii and an arc joining their end points.
(meteorology)
Something resembling the sector of a circle, as a warm sector between the warm and cold fronts of a cyclone.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## sector

The smallest unit of data that is written to and read from a storage drive. The initial hard disk sector sizes were 128 and 256 bytes long but were later increased to 512. Eventually, sectors were enlarged to the "Advanced Format" size of 4,096 bytes. See cluster, sector interleave and magnetic disk.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
The central bank's statistics showed that the total deposits held with the banking system increased by 2.1 per cent to RO22.8bn, with private sector deposits growing by 3.5 per cent to RO14.8bn as at the end of May 2019.
This sector comprises 20 firms, with total cataloged capital of Rs72,618.94 million and the market capitalization of Rs610,576.9 million.
An active role of the private sector in planning, designing and delivery of technical and vocational education and training is a prerequisite for producing skilled workforce according to the demands of the labor market.
The country's banks paid over 479 trillion rials to the service sector during the 3-month period.
Another plot for building a hotel will be sold in Sector G-11 Markaz.
Moreover, he called on banks to reduce their loans to the household, retail trade, and government sectors.
Ras Al Khaimah's transportation sector achieved a growth of 30.3 per cent during the years 2011-2015, according to the Ras Al Khaimah Chamber report.
The CDSI attributed these changes witnessed by main sections consisting the wholesale prices' index, noting that the sector of chemicals and related products topped the decreased sections by (1.5%); the sector of miscellaneous manufactured goods by (1.3%), and the sector of food and live animals by (0.4%).
Income distribution between the agriculture sector and the industry sector is deemed as one of the determinants of the income inequality in an economy.
The report shows that the Russell 2000 Consumer Discretionary sector yielding a return of 33.6 percent during the period recorded.
JEDDAH: The Saudi government spent an average of SR3.6 million for each Saudi citizen employed in the private sector over the past 10 years, a recent study revealed.
Value-added textile sector expressed concern over lack of its representation in the State Bank of Pakistan's support programme for textile sector boost.

Site: Follow: Share:
Open / Close