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COFF

The Common Object File Format (COFF) is a format for executable, object code, and shared library computer files used on Unix systems. It was introduced in Unix System V, replaced the previously used a.out format, and formed the basis for extended specifications such as XCOFF and ECOFF, before being largely replaced by ELF, introduced with SVR4. COFF and…

History, Overview & Features

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Topic orientation

COFF at a glance

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Explore the main themes, entities and connections around COFF. Start with the topic map, then use the sections below for research and deeper semantic analysis.

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Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developed by
AT&T Corporation
Extended to
XCOFF, ECOFF, Portable Executable, Executable and Linkable Format
Internet media type
application/x-coff, application/x-coffexec
Magic number
4C 01 for i386 · 64 86 for AMD64 · 00 02 for Itanium
Type of format
Binary, executable, object, shared libraries

Topics to explore

A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.

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Overview

History

Features

Problems

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How this topic connects Entity context

Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.

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COFF

Top relations

related to Further reading · 15
COFF → Archived, Associates, Brief History, Common Object File Format, Corporation, Gintaras, ISBN, MIPS COFF SpecGircys, O'Reilly, PDF, Revision, Texas Instruments, TI Object File Formats, Understanding, Using COFF
related to history · 8
COFF → As, AT, Improvements, T's UNIX System, The, Unix, Unix-like, VAX
related to Problems · 6
COFF → As, January, The COFF, Unix, UTC, Year
related to Relative virtual address · 6
COFF → If, Relative, RVA, RVAs, The, When
related to Symbolic debugging information · 4
COFF → Each, Short, Symbolic, The COFF
Magic number · 3
COFF → 00 02 for Itanium, 4C 01 for i386, 64 86 for AMD64
related to Features · 2
COFF → COFF's, Different
Developed by · 1
COFF → AT&T Corporation
Extended to · 1
COFF → XCOFF, ECOFF, Portable Executable, Executable and Linkable Format
Filename extension · 1
COFF → .mw-parser-output .monospaced{font-family:monospace,monospace} none, .o, .obj, .lib

Important terminology Word statistics

Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.

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Important terminology

format file object executable used unix address number information symbol files systems portable xcoff ecoff sections table loaded unix-like microsoft

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
COFFDeveloped byAT&T Corporation1.00infobox
COFFExtended toXCOFF, ECOFF, Portable Executable, Executable and Linkable Format1.00infobox
COFFFilename extension.mw-parser-output .monospaced{font-family:monospace,monospace} none, .o, .obj, .lib1.00infobox
COFFInternet media typeapplication/x-coff, application/x-coffexec1.00infobox
COFFMagic number4C 01 for i3861.00infobox
COFFMagic number64 86 for AMD641.00infobox
COFFMagic number00 02 for Itanium1.00infobox
COFFType of formatBinary, executable, object, shared libraries1.00infobox
XCOFFinstance ofand formed the basis for extended specifications0.80text
ECOFFinstance ofand formed the basis for extended specifications0.80text
before being largely replaced by ELFinstance ofand formed the basis for extended specifications0.80text
introduced with SVR4instance ofand formed the basis for extended specifications0.80text

Related concept clusters Concept neighborhoods

Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Map overview Semantic statistics

    Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

    COFF

    Nodes50
    Edges49
    Triples56
    Avg. degree1.96
    Density0.04
    Components1
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