Sector

Sector may refer to:

Places

Circular sector, the portion of a disc enclosed by two radii and a circular arc
Hyperbolic sector, a region enclosed by two radii and a hyperbolic arc
Spherical sector, a portion of a sphere enclosed by a cone of radii from the center of the sphere

Business sector, part of the economy which involves the trading and sale of products by companies
Economic sector, the manufacturing, financial and production of goods for consumers
Private sector, business activity created by private enterprise for profit
Public sector, delivers social services, infrastructure and institutions administered by government
Voluntary sector, a non-profit and voluntary part of an economy provided by organisations
"The sector" in the system of government procurement in the European Union refers to the sector of public utilities and special public interests (e.g. infrastructure or defense) where government procurement has more liberties in order to safeguard their availability

Cylinder-head-sector, an early method for giving addresses to blocks of data on a hard drive
Disk sector, a subdivision of a track on a disk
Sector, or zone, in portal rendering
Sector/Sphere, an open source software suite

Sector (country subdivision)
Sector (instrument), a historic calculating instrument
Economic sector, a subdivision of economic activity
United States Coast Guard Sector, a shore-based unit of the U.S. Coast Guard
Sector, a fictional area of space, e.g. in the Foundation series, Star Wars, StarCraft, Warhammer 40,000, Lollipop Chainsaw
- Sector, or galactic quadrant, regions of space in Star Trek
Sector, and Sector No Limits, watch brands