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FOCAL (programming language): History & Companies

FOCAL (acronym for Formulating On-line Calculations in Algebraic Language, or FOrmula CALculator) is an interactive interpreted programming language based on JOSS and mostly used on Digital Equipment Corporation (DEC) PDP series machines.

Language: English [EN]
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FOCAL (programming language) topic overview

The analysis highlights History and Companies as prominent areas in the source structure around FOCAL (programming language).

Related topics
73
Source areas
9
Connected nodes
82
Extracted relationships
9
Concept neighborhoods
21
Bridge connections
82

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.

Overview · 30 topics
History · 24 topics
Comparison with BASIC · 8 topics
Language · 3 topics
Versions and spinoffs · 3 topics
Changes between versions · 2 topics
Comparison with JOSS · 1 topics
Error codes · 1 topics
Example code · 1 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.

Designed by
Richard Merrill
Developer
DEC
Family
JOSS
First appeared
1968; 58 years ago (1968)
Paradigm
imperative

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

Language

Error codes

Changes between versions

Comparison with JOSS

Comparison with BASIC

Versions and spinoffs

Example code

  • 05.98 FOCAL (programming language)

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 FOCAL (programming language) connects Entity context

The extracted context around FOCAL (programming language) shows recurring relationship patterns in the source. For example, FOCAL (programming language) → Richard Merrill Another extracted example is FOCAL (programming language) → DEC. Use these groups to spot repeated connection types before inspecting the individual relationships.

FOCAL (programming language)

Top relations

Designed by · 1
FOCAL (programming language) → Richard Merrill
Developer · 1
FOCAL (programming language) → DEC
Family · 1
FOCAL (programming language) → JOSS
First appeared · 1
FOCAL (programming language) → 1968; 58 years ago (1968)
Paradigm · 1
FOCAL (programming language) → imperative

Important terminology

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

Important terminology

focal joss line basic used code language number first one program example could group also pdp-8 use value dec version

FOCAL (programming language) relationships Subject–Predicate–Object triples

TTTA extracted 9 structured relationships around FOCAL (programming language). Examples in this analysis include FOCAL (programming language) → Designed by → Richard Merrill and FOCAL (programming language) → Developer → DEC. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
FOCAL (programming language)Designed byRichard Merrill1.00infobox
FOCAL (programming language)DeveloperDEC1.00infobox
FOCAL (programming language)FamilyJOSS1.00infobox
FOCAL (programming language)First appeared1968; 58 years ago (1968)1.00infobox
FOCAL (programming language)Paradigmimperative1.00infobox
mobile computer terminals that could be wheeled from room to roominstance ofthe system was being used by 500 to 600 users across the country and had spawned several innovations0.80text
plugged in for quick access.JOSS was highly influentialinstance ofthe system was being used by 500 to 600 users across the country and had spawned several innovations0.80text
greater thaninstance ofThe language lacked relative operators0.80text
equal or less thaninstance ofThe language lacked relative operators0.80text

Related concept clusters Concept neighborhoods

The concept neighborhoods around FOCAL (programming language) bring nearby vocabulary together. In this analysis, examples include Basic, Joss and Code. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • FOCAL (programming language)
    • Basic
    • Joss
    • Code
    • Version
    • Language
    • File
    • Dec
    • Programs
    • Commands
    • Pdp-8
    • Use
    • Example
  • focal (programming language)
    • Basic
    • Joss
    • Code
    • Version
    • Language
    • File
    • Dec
    • Example
    • Programs
    • Commands
    • Pdp-8
    • Statements
  • joss
    • Language
    • Commands
    • First
    • One
    • Line
    • Example
    • Like
    • Programs
    • Numbers
    • Statements
    • Could
    • Used
  • line editor
    • Number
    • Numbers
    • Program
    • Command
    • Code
    • Group
    • First
    • Used
    • Subroutine
    • Output
    • Statements
    • Abbreviation
  • input/output
    • User
    • Output
    • Would
    • Like
    • Character
    • Abbreviation
    • Line
    • Value
    • Example
    • One
    • Used
    • File
  • whitespace character
    • Value
    • User
    • Would
    • Also
    • File
    • Input
    • Code
    • Number
    • Values
    • Could
    • Example
    • Program
  • source code
    • File
    • Example
    • Program
    • Focal
    • Number
    • Also
    • Group
    • Line
    • Used
    • Programs
    • Command
    • Commands
  • hp time-shared basic
    • Focal
    • Dec
    • One
    • Code
    • Programs
    • Also
    • Pdp-8
    • Two
    • Equivalent
    • Version
    • Use
    • Language

Connections between topic areas Semantic bridges

For FOCAL (programming language), one of the stronger structural bridges in this analysis connects FOCAL (programming language) with Overview. 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
FOCAL (programming language)Overview · splits 52 ⟂ 31
FOCAL (programming language)History · splits 58 ⟂ 25
FOCAL (programming language)Comparison with BASIC · splits 74 ⟂ 9
FOCAL (programming language)Language · splits 79 ⟂ 4
FOCAL (programming language)Versions and spinoffs · splits 79 ⟂ 4
FOCAL (programming language)Changes between versions · splits 80 ⟂ 3

Map overview Semantic statistics

FOCAL (programming language)

Nodes83
Edges82
Triples9
Avg. degree1.98
Density0.024096
Components1

Source & methodology

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

Source: Wikipedia — FOCAL (programming language) · EN edition · Analysis: TopicsToTalkAbout

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