When a disk is low-level formatted, it's divided into tracks, and each track is divided into 512-byte segments. Each segment is called a Sector.

The small "pieces" into which a disk is divided. They can usually hold 512 bytes.

This is a piece of a track of a hard drive or other disk media. Each track is split up into groups of sectors.

A sector is the smallest unit that can be accessed on a hard disk. Each ...

This is a portion of a hard disk.

The basic storage unit on a hard disk. On most modern hard disks, sectors are 512 bytes each, four sectors make up a cluster, and there are 17 to 34 sectors in a trackùalthough newer drives may have a different number of sectors.

A disk storage concept of a pie-shaped portion of a disk or diskette in which records are stored and subsequently retrieved. (Contrast with cylinder.)

The fundamental unit of data access for a hard-disk drive. For PC-compatible systems, a sector is usually 512 bytes. See also block and block size.

On a diskette, this is a 128-byte physical area. The diskette contains 40 tracks with. 18 sectors per track.

A wedge-shaped area on a disk's surface. The formatting process creates sectors and tracks.

On a disk, the smallest contiguous physical unit for recording information. Multiple sectors make up a track.

a subsection of a magnetic disk, used as part of the address to identify the location of stored data; a disk is divided into pie-shaped wedges, and an individual track within a wedge forms one sector.

A sector is a section of track whose size is determined by formatting. When used as an address component, sector and location refer to the sequence number of the sector around the track. Typically, one sector stores one user record of data. Determining how many sectors per track to use is dependent on the system type, the controller capabilities, and the drive encoding method and interface.

smallest partition section, typically 512 bytes

A part of the format scheme in disk drives. A disk drive is composed of equal segments called sector; a sector is the smallest unit of transfer to or from a disk drive. The size of a sector depends on the disk drive. See also block.

A unit of size, which can vary between systems. Sector size is set per device (hard drive, CD-ROM, and so on). Although all devices within a system are usually configured to the same sector size for interoperability, this is not always the case. A sector is commonly 1024 bytes.

part of a track (a segment of group of segments of equal size) in which data is stored

Smallest packet of information that is read from or written to a hard drive (usually 512 bytes). Sectors are numbered starting from 1 (in CHS format).

the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes

a logical segment of information on a particular track, and is the smallest addressable unit of storage on a disk

a minimal chunk of disk

a segment of a track on a magnetic disk (i

a small area of a track

a small part of a track

a unit of storage on a hard disk

In a CP/M system, a sector is always 128 consecutive bytes. A sector is the basic unit of data read and written on the disk by the BIOS. A sector can be one 128-byte record in a file or a sector of the directory. The BDOS always requests a logical sector number between 0 and (SPT-1). This is typically translated into a physical sector by the BIOS entry point SECTRAN. In some disk subsystems, the disk sector size is larger than 128 bytes, usually a power of two, such as 256, 512, 1024, or 2048 bytes. These disk sectors are always referred to as host sectors in CP/M documentation and should not be confused with other references to sectors, in which cases the CP/M 128-byte sectors should be assumed. When the host sector size is larger than 128 bytes, host sectors must be buffered in memory and the 128-byte CP/M sectors must be blocked and deblocked from them. This can be done by adding an additional module, the blocking and deblocking algorithm, between the BIOS disk I/O routines and the actual disk I/O.

also referred to as a frame or block. It contains sync, header, user data, error detection and correction, and control information. For CD-ROM, a block is 1/75 of a second in length and contains 2352 bytes.

A pie-shaped area on a disk surface.

On a computer diskette or hard disk, a sector is one of the "pies slices" the diskette or disk is divided into.

Smallest data unit accessible on disk. Normally 512 bytes. Tracks are divided into sections called sectors and the size of these sections are determining by the formatting. The standard sector stores one user record of data. Many factors, such as system type, the drive encoding method, interface and capabilities of the controller determine how many sectors per track are used. Sector and location refer to the sequence number of the sector around the track when the sector is used an an address component.

The sector is the smallest addressable segment of a recording session. The Red Book Standard specifies the physical layout of the data in a sector. Excluding ECC and EDC, each sector is composed of 2352 bytes of data. The logical layout, or how those bytes are allocated for synchronization, data, additional error correction, etc., depends on the selected recording mode and is specified by the appropriate standard, or "book". The audio recording format, for example, uses all 2352 bytes for audio data. Mode 1 data recording, generally used for programs and data that cannot tolerate errors, uses only 2048 bytes for digital data. The remaining 304 bytes are used for sync and additional error correction.

The tracks on a disk are divided into sectors. Clusters contains from 1 to 64 sectors.

A logical segment of information on a particular track. The smallest addressable unit of storage on a disk. Tracks are divided into sectors, each sector is 512 bytes long. They contain data, but also contain "housekeeping" information.

When referring to disk drives, the number of fixed-size (normally 512 byte) areas that can be accessed by one of the disk drive's read/write heads, in one rotation of the disk, without that head changing position. See Also Geometry.

Smallest addressable entity in the information area that can be addressed independently of other addressable parts.

A 512-byte packet of data in EIDE and SCSI hard drives. This is the smallest amount of data that can be read or written to the drive from the host interface. On Macintosh and Unix drives, sectors are usually grouped into blocks or logical blocks that function as the smallest data unit permitted. Since these blocks are often defined as a single sector, the terms block and sector are sometimes used interchangeably in this context. (Note: The meaning of the term block in connection with the physical configuration of the disk is different from its meaning at the system level. (See also block and cluster.)

Bits and bytes make it possible for computers to perform computations and to store data and, for efficiency purposes, bytes are stored on disks in blocks of data called sectors, with most computer systems relying upon a sector size of 512 bytes of data (4096 bits). The sector is the smallest unit of storage on a computer storage device and is generally a power of 2 bytes in size. Sectors are created and mapped when the computer storage device is low level formatted and are written consecutively to disks on tracks. As the sector is created and written to the disk, the storage media is verified for accuracy with this verification process involving the writing of 512 bytes (4096 bits) of data to disk.

A triangular section of a disk surface; a block of data is addressed by its track and sector numbers

May mean either A sociological, economic, or political subdivision of society, or A subdivision of a track on a computer disk. [D03259] Webster

Smallest data unit accessible on disk. Normally 512 bytes. See block .

disk storage is organized into sectors, which are pie-shaped slices, and tracks, which are concentric rings. A combination of two or more sectors on a single track makes a cluster or block, the minimum unit used to store information. The number of sectors per track determines the size of each cluster. The number of clusters on a disk's surface determines the storage capacity of the disk.

The smallest recordable unit on a CD. A disc can contain [(75 sectors per second) x (60 seconds per minute) x (number of minutes on disc)] sectors. The amount of data contained in the sector depends on what physical format it is recorded in; for "regular" CD-ROM data, you can fit 2048 bytes (2 kilobytes) of data into a sector.For more information.

The smallest unit that can be accessed on a floppy or hard disk. The operating system and disk drive keep tabs on where information is stored on the disk by noting sector. A sector that cannot be used due to a physical flaw on the disk is called a bad sector. Return to .

An allocated amount of space on a platter. Usually 512 bytes per sector.

1. Physically, a continuous range of rotational angle of a disk, a segment of a track. Usually, physical sectors are staggered in order to give enough time to deal with one sector before the next is accessible. 2. Logically, a smallest portion of information that can be read/write at the time from/to disk, typically 512 bytes. On Macintosh and UNIX drives, sectors usually are grouped into blocks that function as the smallest data unit permitted. The terms block and sector are sometimes used interchangeably.

(Secteur) : Recording zone on a disk. Of a fixed size, the sectors are the smallest addressable units on a disk. A sector generally contains 512 data bytes.

This is a minimal unit of the disk partitioning (i.e. minimal addressable part of the disk). The disk is divided into sectors during its formatting. Disk sectors may be physical (absolute) and logical. The same sector might be treated as a physical one when it is addressed by BIOS functions, and as logical one when it is addressed by DOS interrupts. The sector is usually 512 bytes long.

A logical or physical group of bytes recorded on the disc-the smallest addressable unit. A DVD sector contains 38,688 bits of channel data and 2048 bytes of user data.

A segment of a track on a hard drive disk that has a capacity of 512 bytes.

A group of 128 bytes on the disk. It may be difficult to do, but try to imagine a disk being made up of 40 concentric rings. Now imagine cutting the whole disk into 18 equal-size wedges. Each of these wedges will have 40 pieces for a total of 720 pieces altogether. Well, each of these pieces is a sector.

A collection of bytes at the data layer; the smallest recordable unit on a disc. One sector can hold 2048 bytes of data or 2324 bytes of audio/video information.

A group of bytes on any given track of a hard drive's platters and the smallest area of information that can be accessed on the drive. Sectors are numbered sequentially starting with 1 on each individual track. Thus, Track 0, Sector 1 and Track 5, Sector 1 refer to different sectors on the same hard drive. Usually, drives have sectors that contain 512 bytes each.

a "pie-shaped" angular section of a track that is bounded on two sides by radii of the disc and on the other side by the perimeter of the circle that defines the track

a region enclosed by two radii and an arc

a wedge modified by intersections with overlapping TilingGeometry regions

pie shaped part of a circle The cirlce was cut into six sectors; the angle of each was 60 degrees.

A region bounded by an arc and two radiuses of a circle. The word wedge is sometimes used instead of sector.

An area between an arc and two radiuses of a circle. Sometimes referred to as a wedge.

A wedge bounded by an arc and the line segments connecting the arc's center to its endpoints

is like a slice of pie (a circle wedge).

A fancy name for industry, especially a narrowly defined industry (e.g., biotech, pharmaceuticals and HMOs are sectors in the health care industry).

A grouping of the main human activities that contribute to the release or capture of greenhouse gases into or from the atmosphere ( AGO 1998).

A group of securities with similarities (for example, industry type, coupon rate, maturity date and/or rating).

Most employers covered by the Act fall in one of three main federally regulated sectors in Canada: Banking, Communications and Transportation. For the purpose of this report, the grouping "Other sectors" includes all Crown corporations and individual industries (e.g., nuclear energy, grain elevators, metal mines) that fall under federal jurisdiction, but are not included in the first three sectors.

distinct part of the economy e.g. health, agriculture, natural resources, economic planning, water resources, industry, private sector. Compare: health sector

Also called an industry, a category that describes a company's primary business activity and identifies its competitors.

Division, most commonly used to denote type of energy consumer (e.g., residential) or according to the Intergovernmental Panel on Climate Change, the type of greenhouse gas emitter (e.g. industrial process). See Intergovernmental Panel on Climate Change.

A group of securities that share common characteristics (eg. resources sector, textiles sector, etc).

A grouping of similar industries, or other entities that are involved with common activities, such as petroleum refining or aluminium production. In many instances, a Standard Industrial Classification (SIC) code is used to describe an industry or activity for purposes of facilitating the collection and assimilation of data relating to the establishment. These data can then be compiled on a Database Management System to accurately record emission sources in a particular sector.

A grouping of companies in the same industry or otherwise similar. Sectors and sector indices are used as benchmarks for comparison.... more on: Sector

Used to characterize a group of securities that are similar with respect to industry, geographic region, business, style, rating, and/or coupon.

Primasia has grouped Taiex companies into 15 subsectors, and OTC companies into 10 subsectors.

A sector is a particular group of securities that are in the same industry. It is common for analysts to specialize on certain sectors. For example, at a large research firms an analyst may cover only electronics companies. Many mutual funds also specialize by sector, a practice known as sector investing.

The grouping together of companies, or assets, with common features. For shares, the term is used to mean the listed companies within an industry. A stock market is broken down into sectors.

a group of securities with common characteristics, such as resource sector companies or financial companies.

a part or branch of the whole industry that provides particular goods and/or services

a broader grouping of companies than an industry group

a grouping of funds with a similar investment objective and make up

a group of companies that loosely belong to the same industry and provide the same product or service

a group of companies that share common characteristics

a group or cluster of star systems united for economic and political reasons

a large grouping of stocks with some basic element in common

a logical grouping of triangles, portals, actors, particle systems, etc

an industry, for example construction, which groups related jobs together

a portion of the construction industry defined by the type of construction activity performed

a portion of the overall stock market that is made up of industries whose business components share similar characteristics

The market sector is the specific industry type in the economy such as: health, education, financial, technology, energy, communications, biotechnology etc.

A group of companies that have shared characteristics, usually operating in a common industry.

A national group of companies, organisations or workers which share some relevant combination of products, services or technology which results in their having common human resource concerns.

Investment funds are grouped into a variety of sectors reflecting their investment strategy and objectives. E.g. Global Growth, UK Equity Income and Specialist. Dividing funds into sectors makes it easier to make comparisons between similar funds.

Refers to a group of industries. See industry

Area of economic or social activity, such as agriculture, industry, education, health services, etc.  Grouped, for the purpose of valuation, into three: social, infrastructural and productive (including both goods and services)

A distinct subset of an industry whose components share similar characteristics.

a group of shares with common characteristics

A group of companies, often related to a particular industry that have certain shared characteristics.

Used to characterize a group of securities that are similar with respect to type and industry

A particular group of securities issued by companies that operate in the same industry, such as, for example, mining or electronics. A segment of the economy can also be classified as a sector.

a group of stocks whose companies engage in the same or similar business; also known as industry; eg., computer manufacturers, airlines

Equity fund sectors represent groupings of stocks in a particular market subset (e.g., utilities, transportation). Fixed income fund sectors represent groupings of bonds of a particular quality (e.g., A Rated, Government/AAA Rated).

Used to characterize a group of securities that are similar with respect to a particular industry (e.g. technology) maturity, type, or rating.

in some instances, this term may be used to describe a grouping of industries or a grouping of occupations.

A distinct subset of a market whose components share similar characteristics. Stocks are often grouped into different sectors depending upon the company's business. For example the FTSE 100 has banking, oil and gas and pharmaceutical sectors.

A sector is a group of shares, often in one industry. The performance of any single share in a sector can be measured against the performance of the sector as a whole, showing where that share ranks in relation to its peers. Mutual funds that concentrate on the shares of a specific sector are known as sector funds. These funds can be more volatile than other funds, reflecting the current strength or weakness of that sector in the overall economy. Technology shares, for example, were hot in the year 2000 but later in the doldrums.

A group of stocks that share common industry characteristics. For example, airline company stocks are a sector of the transportation industry.

A group of companies that generate revenue in similar ways, and tend to rise and fall with the economic cycle. Sectors are commonly broken down into smaller groups called industries. Examples of sectors are financials sector and technology sector.

The category in which funds or companies are grouped.

A group of closely related industries. See Annex 3 for more information on sector classification.

A group of securities that are similar in maturity, type, rating, industry and/or coupon. The term typically refers to a distinct part of the economy—for example, the technology sector.

A group of industries in a relatively similar type of business. For example, the Technology sector would include computer and electronics industries.

Each of the first four Areas of the TELEMATICS APPLICATIONS Programme - (A) Telematics for Services of Public Interest, (B) Telematics for Knowledge, (C) Telematics for Improving Employment and Quality of Life, (D) Horizontal RTD Activities - has one or more sectors, such as transport, education and training, libraries or healthcare, where a distinct set of needs, user groups and applications has been identified.

A sector is the broadest category available in NAICS to describe business activities. NAICS provides 20 separate sector categories. Different sectors describe different groupings of related and more detailed NAICS categories. The activities included in each sector. Contribute to U.S. economic output. Statistical agencies use sector categories to collect, publish, and analyze business statistics. For example, the census uses sector categories in organizing, customizing, and describing census forms.

A group of organisations or businesses that work in the same field or area.For example, Agriculture is a sector, so is Tourism.

A group of securities that are in similar area of investment or interest.

The categories included within a broader scope of franchise opportunities, otherwise known as the Industries. The sector permits for a more detailed look into the franchise you desire, as well as easing the search process.

This refers to how funds are grouped. A fund may be placed in a grouping by Country it invests in or the type of fund it is. E.g. funds which invest in America will be found in the American sector.

In the 1997 economic census data are classified into 20 NAICS sectors, using a 2 digit code. These sectors are subdivided into 96 sub-sectors, using a 3 digit code. Related term: North American Industry Classification System (NAICS)

A group of securities similar with respect to industry, maturity, type, rating, and/or coupon.

A group of securities that share certain common characteristics (e.g. operate in the same industry).

Securities that have the same characteristics, e.g. resources sector, textile sector etc.

McKinsey Group that concentrates on consulting special industries (automotive, chemicals, etc.)

Stocks or bonds with similar characteristics, such as structure, issuer type, rating, maturity, industry or coupon rate.

a transition zone for reduced vertical separation minima (RVSM), which had been introduced three weeks before the occurrence

a mathematical instrument consisting of two hinged arms on which there are engraved scales which can be used to help with calculations

a mathematical instrument consisting of two hinged arms with various scales

an instrument that has a plumb, two legs with measurements on them, and a right angle

calculating instrument using pairs of lines on the faces of two hinged arms, see article on the sector.

The sector, also known as a proportional compass or military compass, was a major calculating instrument in use from the end of the sixteenth century until the nineteenth century. It is an instrument consisting of two rulers of equal length which are joined by a hinge. A number of scales are inscribed upon the instrument which facilitate various mathematical calculations.

A designated segment of the fire perimeter handled as a unit for suppression purposes. Note Sector Boss under Fire Overhead.

a large part ofthe Ontario economy, and to drop like crazy if you look at automart books(not

a part of a cell)

a part of a whole

Parts of the economy as judged by the economic activity that they constitute. For example agriculture, forestry, fishing and mining constitute the primary sector.

All organisations within a particular part of the economy - as in Private Sector, Statutory Sector, Voluntary Sector etc.

A distinct part of an economy, society or sphere of activity.

One flight. If you have one connecting flight before you arrive at your destination, you would have travelled two sectors.

One of three areas of the board, being the queenside, the centre, and the kingside.

A clearly defined area that a given unit protects or covers with fire.

A sector is a subdivision of a region. Sectors were originally defined as an area of the galaxy that contained fifty inhabited planets. Due to exploration, many sectors have outgrown this figure.

An area of space which contains approximately 40 usable planets.

An area of tissue whose phenotype is detectably different from the surrounding tissue phenotype.

In the fictional Star Trek universe, a sector is an area of space, usually designated by a series of numbers to indicate its location in the galaxy.

Used in several ways: economically as the primary, secondary, and tertiary sectors; spatially; and topically to indicate any division of human activity (or any interest group) that provides for the protection or promulgation of its interests. This last usage is the most frequent in this volume.

a division of the public post-secondary education system within British Columbia. There are two sectors: the college, university college, institute and agency sector and the university sector.

A division of a field of activity, e.g. the vocational education and training sector of further education, public and private vocational education and training sectors.

Is either a geographic or functional assignment. Sector may take the place of either the Division or Group or both.

A physical or operational division of an incident; an area supervised as a branch in the Incident Command System. A typical system for structure fires names the "front" of the building "sector A", and continues clockwise around the building (B, C, D), with interior sectors denoted by the floor number (1, 2, 3, etc). A "rehab" sector is one example of an operational division at an incident, where personnel are assigned after strenuous work in another sector.

A defined portion of social, commercial or educational activities used to prescribe the boundaries of an Education and Training Quality Assurance body (ETQA)

A region that divides your hard drive plates containing data.