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COFF: History, Overview & Features

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…

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COFF topic overview

The analysis highlights History, Overview and Features as prominent areas in the source structure around COFF.

Related topics
44
Source areas
4
Connected nodes
49
Extracted relationships
56
Concept neighborhoods
26
Bridge connections
49

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 20 topics
Overview · 15 topics
Features · 6 topics
Problems · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

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

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

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 COFF connects Entity context

The extracted context around COFF shows recurring relationship patterns in the source. For example, 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 Another extracted example is COFF → As, AT, Improvements, T's UNIX System, The, Unix, Unix-like, VAX. Use these groups to spot repeated connection types before inspecting the individual relationships.

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

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

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

COFF relationships Subject–Predicate–Object triples

TTTA extracted 56 structured relationships around COFF. Examples in this analysis include COFF → Developed by → AT&T Corporation and COFF → Extended to → XCOFF, ECOFF, Portable Executable, Executable and Linkable Format. The table shows each extracted connection, where it came from and its confidence.

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

The concept neighborhoods around COFF bring nearby vocabulary together. In this analysis, examples include Executable, Object and Format. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • COFF
    • Executable
    • Object
    • Format
    • Unix
    • File
    • Used
    • Line
    • Names
    • Systems
    • Files
    • Information
    • Number
  • coff
    • Executable
    • Object
    • Format
    • Unix
    • File
    • Used
    • Line
    • Names
    • Systems
    • Files
    • Information
    • Number
  • format
    • Executable
    • Unix
    • Object
    • Ecoff
    • Extended
    • Original
    • System
    • Used
    • Xcoff
    • Portable
    • Systems
    • Elf
  • executable
    • Format
    • Portable
    • Systems
    • Microsoft
    • Unix-like
    • Unix
    • Object
    • Shared
    • Used
    • Development
    • Embedded
    • Extended
  • object code
    • Original
    • Files
    • Unix
    • Number
    • Shared
    • Different
    • Relative
    • Systems
    • Virtual
    • Sections
    • Address
    • Information
  • unix system v
    • Ecoff
    • Extended
    • Xcoff
    • Systems
    • System
    • Unix
    • Unix-like
    • Used
    • Elf
    • Portable
    • Svr4
    • Address
  • xcoff
    • Ecoff
    • Development
    • Extended
    • System
    • Unix
    • Elf
    • Format
    • Shared
    • Svr4
    • Used
    • Different
    • Embedded
  • ecoff
    • Xcoff
    • Development
    • Extended
    • System
    • Unix
    • Elf
    • Format
    • Shared
    • Svr4
    • Used
    • Different
    • Embedded

Connections between topic areas Semantic bridges

For COFF, one of the stronger structural bridges in this analysis connects COFF with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
COFF — History · splits 29 ⟂ 21
COFF — Overview · splits 33 ⟂ 17
COFF — Features · splits 43 ⟂ 7
COFF — Problems · splits 46 ⟂ 4

Map overview Semantic statistics

COFF

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

Source & methodology

TTTA analyzes the structure around COFF to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Overview & Features, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — COFF · EN edition · Analysis: TopicsToTalkAbout

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