Multics

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Multics topic overview

The analysis highlights History, Project history and Novel ideas as prominent areas in the source structure around Multics.

Related topics: 145
Source areas: 8
Connected nodes: 153
Extracted relationships: 215
Concept neighborhoods: 45
Bridge connections: 153

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.

Novel ideas · 33 topics

Commands · 32 topics

Influence on other projects · 22 topics

Overview · 22 topics

Project history · 18 topics

Technical details · 8 topics

Retrospective observations · 6 topics

Security · 4 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.

Available in: English
Default user interface: Command-line interface
Developer: MIT, GE, Honeywell, Bell Labs
Influenced: Unix, GEORGE 3, ICL VME, PRIMOS, Domain/OS, Stratus VOS
Initial release: 1969; 57 years ago (1969)
Kernel type: Monolithic kernel

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

Time-sharing
Operating system
Single-level memory Single-level store
Cambridge, Massachusetts
MIT Massachusetts Institute of Technology
Project MAC
Fernando Corbató
General Electric
Bell Labs
GE 645
GE 635
Dartmouth Time-Sharing System
Honeywell
Computing utility Utility computing
Telephone
Electricity
Utilities Public utility
Access control lists Access control list
Computer science
Unix
PDP-7
PDP-11

Novel ideas

Files Computer file
Process Computer process
Memory Computer memory
Address space
Central processing units Central processing unit
Disk Disk storage
POSIX
Mmap
File system
Kilowords Kiloword
MB Megabyte
Dynamic linking Shared library
Search rules PATH (variable)
Dynamic-link libraries (DLLs) Dynamic-link library
Daemon Daemon (computing)
Procedure-call Procedure call
On-line reconfiguration Hot-swapping
Multiprocessor
Secure system Computer security
Security engineering
Ring-oriented security Ring (computer security)
Master mode Kernel mode
Hierarchical file system
Process Process (computing)
Stacks Stack (data structure)
Kernel Kernel (operating system)
Command processor
Unix shell
PL/I
Burroughs MCP
ESPOL Executive Systems Problem Oriented Language
ALGOL
Phonemes Phoneme

Project history

36-bit
Honeywell 6180 Honeywell 6000 series
Protection rings Protection ring
Security kernel
Multilevel security
Mandatory access control
Discretionary access control
XTS-400
Trusted Computer System Evaluation Criteria
National Computer Security Center
NSA
Bull SAS Groupe Bull
Europe
Free software
Natively Native (computing)
Department of National Defence Department of National Defence (Canada)
TCP/IP
Emulator

Commands

Commands Command (computing)
Command-line interface
Change_wdir Cd (command)
Working directory
Create_dir Mkdir
Copy Copy (command)
List Ls
Print Cat (Unix)
Print_wdir Pwd
Move Mv (Unix)
Line editor
Multics Emacs
Qed QED (text editor)
Teco TECO (text editor)
Runoff TYPSET and RUNOFF
Apl APL (programming language)
Basic
Cobol
Fortran
Pascal Pascal (programming language)
Help Help (command)
Echo Echo (command)
If If (command)
GCOS General Comprehensive Operating System
Logout Logout (command)
Who Who (Unix)
Shell Shell (computing)
Floor Floor and ceiling functions
Home directory
Ltrim
Rtrim
Trunc Truncation

Retrospective observations

Influence on other projects

Technical details

Jerome H. Saltzer
Elliott I. Organick Elliott Organick
V. A. Vyssotsky Victor A. Vyssotsky
F. J. Corbató Fernando J. Corbató
P. G. Neumann Peter G. Neumann
ACM Association for Computing Machinery
SOSP
Roger R. Schell

Security

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 Multics connects Entity context

The extracted context around Multics shows recurring relationship patterns in the source. For example, Multics → ACM SOSP, AFIPS, An Examination, Bensoussan, Clingen, Concepts, Corbató, Daley, Describes, Design, Dynamic Reconfiguration, Elliott, Feiertag, General Purpose File System, Graham, I/O, Introduction, Its Structure, Jerome, June Another extracted example is Multics → Air Force Electronic Systems, Clark, Computer Systems, Division, Final Report, IBM, IEEE, Information, It, Jerome, Karger, Lessons, Michael, MIT LCS, Multics Kernel Design Project, Multics Security Evaluation, Paul, Proceedings, Roger, Saltzer. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

related to Technical details · 41

Multics → ACM SOSP, AFIPS, An Examination, Bensoussan, Clingen, Concepts, Corbató, Daley, Describes, Design, Dynamic Reconfiguration, Elliott, Feiertag, General Purpose File System, Graham, I/O, Introduction, Its Structure, Jerome, June

related to Security · 27

Multics → Air Force Electronic Systems, Clark, Computer Systems, Division, Final Report, IBM, IEEE, Information, It, Jerome, Karger, Lessons, Michael, MIT LCS, Multics Kernel Design Project, Multics Security Evaluation, Paul, Proceedings, Roger, Saltzer

related to External links · 24

Multics → Bull, Charles Babbage Institute, Comments Forms, Congress Web Archives, Current Multics, FAQ Includes, GE Large Systems, History, Honeywell, Inc, Library, Minnesota, MITLink, Multicians, MULTICS System Programmers Manual, MULTICS Technical Bulletins, MulticsMultics, MulticsOpen, Operating Systems, Request

see also · 17

Multics → CrismanVictor, DenningJack, DennisRobert Fano, Free, Graham, Licklider, MIT, MulticsJerome, NeumannElliott OrganickLouis Pouzin, Peter, Pouzin, Project MAC, Robert, SaltzerRoger, SchellGlenda Schroeder, Time-sharing, Vyssotsky

related to Further reading · 16

Multics → AFIPS, Clingen, Corbató, Donovan, Introduction, John, Madnick, Multics Bibliography, Multics System, Operating Systems, Overview, Saltzer, Systems Programming, The, The First Seven Years, Vyssotsky

related to Other operating systems · 12

Multics → AEGIS, Apollo Computer, Domain/OS, Poduska, PRIMOS, Stratus Computer, Stratus Technologies, Stratus VOS, The, The Prime Computer, The Stratus VOS, William Poduska

related to Unix · 11

Multics → Abelson, Bell Labs, But, Dennis Ritchie, Garfinkel, Influence, Ken Thompson, Peter Neumann, The, Unics, Unix

related to history · 10

Multics → At MIT, Bell Labs, Finally, GE's, GE-645, General Electric, Honeywell, In, MIT, Unix

related to Current status · 9

Multics → Bull HN, Charles Anthony, In, MIT, Most, MR12, Multicians Harry Reed, TCP/IP, The

related to Novel ideas · 9

Multics → All, CPU, In POSIX, Larger, MB, Segments, The, To, Unix

Important terminology

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

Important terminology

system mit systems unix computer operating security memory honeywell project process first code access file development information kernel features hardware

Multics relationships Subject–Predicate–Object triples

TTTA extracted 215 structured relationships around Multics. Examples in this analysis include Multics → Available in → English and Multics → Default user interface → Command-line interface. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
Multics	Available in	English	1.00	infobox
Multics	Default user interface	Command-line interface	1.00	infobox
Multics	Developer	MIT, GE, Honeywell, Bell Labs	1.00	infobox
Multics	Influenced	Unix, GEORGE 3, ICL VME, PRIMOS, Domain/OS, Stratus VOS	1.00	infobox
Multics	Initial release	1969; 57 years ago (1969)	1.00	infobox
Multics	Kernel type	Monolithic kernel	1.00	infobox
Multics	Latest release	12.8 / August 10, 2023; 3 years ago (2023-08-10)	1.00	infobox
Multics	License	Originally proprietary, Free software Multics License since 2007	1.00	infobox
Multics	Official website	multics-wiki.swenson.org	1.00	infobox
Multics	Preceded by	Compatible Time-Sharing System	1.00	infobox
Multics	Repository	web.mit.edu/multics-history/source/Multics_Internet_Server/Multics_sources.html	1.00	infobox
Multics	Source model	Open source	1.00	infobox
Multics	Supported platforms	GE-645, Honeywell 6000 series machines (Honeywell 6180, Series-60/Level-68, DPS-8/M mainframes)	1.00	infobox
Multics	Working state	Mature, current, historic, emulator available	1.00	infobox
Multics	Written in	PL/I, Assembly language	1.00	infobox
Multics	is a	first major operating system to be designed as a secure system from the outset	0.90	text
Multics	is a	first operating system to provide a hierarchical file system	0.90	text
Multics	is a	first to use the now-standard concept of per-process stacks	0.90	text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Multics bring nearby vocabulary together. In this analysis, examples include System, Security and Operating. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

Multics
- System
- Security
- Operating
- Systems
- Unix
- Computer
- Mit
- Honeywell
- Memory
- Code
- First
- Hardware
multics
- System
- Security
- Operating
- Systems
- Unix
- Computer
- Mit
- Honeywell
- Memory
- Code
- First
- Hardware
operating system
- System
- Systems
- Influenced
- Computer
- Secure
- Project
- Source
- Mit
- File
- First
- Software
- Time-sharing
single-level memory
- System
- Process
- Used
- Kernel
- File
- Time-sharing
- Multics
- Also
- Segment
- Operating
- Source
- Access
mit
- Project
- Kernel
- Source
- Multics
- Computer
- Systems
- System
- Code
- Ge
- Bell
- Security
- Working
bell labs
- Working
- Project
- Unix
- Time-sharing
- Commands
- Ge
- Influenced
- Mit
- Also
- Active
- Kernel
- Software
dartmouth time-sharing system
- Project
- Computer
- Mit
- File
- First
- Working
- Software
- Unix
- Time-sharing
- Security
- Systems
- Secure
honeywell
- Systems
- Information
- Security
- Unix
- Multics
- Influenced
- Also
- Hardware
- Kernel
- Software
- Source
- Project

Connections between topic areas Semantic bridges

For Multics, one of the stronger structural bridges in this analysis connects Multics with Novel ideas. 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

Multics — Novel ideas · splits 120 ⟂ 34

Multics — Commands · splits 121 ⟂ 33

Multics — Overview · splits 131 ⟂ 23

Multics — Influence on other projects · splits 131 ⟂ 23

Multics — Project history · splits 135 ⟂ 19

Multics — Technical details · splits 145 ⟂ 9

Multics — Retrospective observations · splits 147 ⟂ 7

Multics — Security · splits 149 ⟂ 5

Map overview Semantic statistics

Multics

Nodes154

Edges153

Triples215

Avg. degree1.99

Density0.012987

Components1

Source & methodology

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

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