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Legacy systems
Index
Mathematics
History of mathematics
History of computing
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1970-01-01
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Table of contents
Backward compatibility
Legacy systems
Backward-compatible video game consoles
Backward compatibility
Binary-code compatibility
Backward compatibility
Bug compatibility
Backward compatibility
Deprecation
Backward compatibility
Forward compatibility
Backward compatibility
List of Xbox games compatible with Xbox 360
Backward compatibility
List of backward-compatible games for Xbox One and Series X/S
Backward compatibility
ProgID
Backward compatibility
Source-code compatibility
Backward compatibility
IPv4
Legacy systems
Address plus Port
IPv4
Carrier-grade NAT
IPv4
IPv4 address exhaustion
IPv4
Internet Protocol version 4
IPv4
List of assigned /8 IPv4 address blocks
IPv4
List of countries by IPv4 address allocation
IPv4
Legacy hardware
Legacy systems
Floppy disk computer storage
Legacy hardware
AMX Mouse
Legacy hardware
Atari joystick port
Legacy hardware
BBC Micro expansion unit
Legacy hardware
Bus mouse
Legacy hardware
Chinese language card
Legacy hardware
Commodore bus
Legacy hardware
Floppy disk
Legacy hardware
Floppy disk hardware emulator
Legacy hardware
Floppy disk variants
Legacy hardware
Game port
Legacy hardware
Hardcard
Legacy hardware
IEEE 1284
Legacy hardware
Industry Standard Architecture
Legacy hardware
Legacy-free PC
Legacy hardware
Legacy port
Legacy hardware
List of floppy disk formats
Legacy hardware
LocalTalk
Legacy hardware
Magneto-optical drive
Legacy hardware
Model F keyboard
Legacy hardware
Monochrome monitor
Legacy hardware
PC speaker
Legacy hardware
Parallel port
Legacy hardware
Serial port
Legacy hardware
USB-to-serial adapter
Legacy hardware
Write precompensation
Legacy hardware
X10 accelerated floppy drive
Legacy hardware
Minicomputers
Legacy systems
DEC minicomputers
Minicomputers
IBM minicomputers
Minicomputers
Minicomputer stubs
Minicomputers
Norsk Data minicomputers
Minicomputers
Unix software
Minicomputers
3B series computers
Minicomputers
AN/GYK-12
Minicomputers
Alpha Microsystems
Minicomputers
BB Tecnologia e Serviços
Minicomputers
BCL Molecular
Minicomputers
Bendix G-15
Minicomputers
CDC 1700
Minicomputers
CID-201
Minicomputers
Computer Control Company
Minicomputers
Computer Technology Limited
Minicomputers
DDP-24
Minicomputers
Data General Eclipse
Minicomputers
Data General Eclipse MV/8000
Minicomputers
Data General Nova
Minicomputers
Digico Limited
Minicomputers
Elxsi
Minicomputers
Flip-Chip module
Minicomputers
GEC 2050
Minicomputers
GEC 4000 series
Minicomputers
GEC Series 63
Minicomputers
General Automation
Minicomputers
HLH Orion
Minicomputers
HP 2100
Minicomputers
HP 3000
Minicomputers
Honeywell 316
Minicomputers
Honeywell Level 6
Minicomputers
Honeywell System 700
Minicomputers
IBM 801
Minicomputers
IMLAC
Minicomputers
Interdata
Minicomputers
Interdata 7/32 and 8/32
Minicomputers
K-202
Minicomputers
Lockheed MAC-16
Minicomputers
MERA 300
Minicomputers
Minicomputer
Minicomputers
Multum
Minicomputers
ND812
Minicomputers
Nicolet 1080
Minicomputers
Norsk Data
Minicomputers
P4000
Minicomputers
PC12 minicomputer
Minicomputers
Patinho Feio
Minicomputers
PowerHouse (programming language)
Minicomputers
Powernode 9080
Minicomputers
Prime Computer
Minicomputers
Programmed Data Processor
Minicomputers
Q-Bus
Minicomputers
RCA 1600
Minicomputers
Raytheon 704
Minicomputers
Robotron K 1820
Minicomputers
Robotron K 1840
Minicomputers
Selenia Gp-16
Minicomputers
Simulation for Automatic Machinery
Minicomputers
Singer System Ten
Minicomputers
Superminicomputer
Minicomputers
TI-990
Minicomputers
Tandem Computers
Minicomputers
VAX
Minicomputers
Wang 2200
Minicomputers
Wang 3300
Minicomputers
Wang 4000
Minicomputers
Wang Laboratories
Minicomputers
Xerox 500 series
Minicomputers
Xylogics
Minicomputers
Software maintenance
Legacy systems
Authorized Program Analysis Report
Software maintenance
Backporting
Software maintenance
Debug code
Software maintenance
Delta update
Software maintenance
Hotfix
Software maintenance
Journal of Software: Evolution and Process
Software maintenance
Lehman's laws of software evolution
Software maintenance
Long-term support
Software maintenance
Maintenance mode
Software maintenance
Microsoft Software Assurance
Software maintenance
OpenFrame
Software maintenance
Patch (computing)
Software maintenance
Program slicing
Software maintenance
Program temporary fix
Software maintenance
SMP/E
Software maintenance
SQALE
Software maintenance
Schema migration
Software maintenance
Software analytics
Software maintenance
Software archaeology
Software maintenance
Software brittleness
Software maintenance
Software entropy
Software maintenance
Software evolution
Software maintenance
Software maintainer
Software maintenance
Software modernization
Software maintenance
Software rot
Software maintenance
Software visualization
Software maintenance
Source port
Software maintenance
SrcML
Software maintenance
Stovepipe system
Software maintenance
System migration
Software maintenance
Technical debt
Software maintenance
Unofficial patch
Software maintenance
Workaround
Software maintenance
Acorn Online Media Set Top Box
Legacy systems
CHILL
Legacy systems
Cab Secure Radio
Legacy systems
Characterization test
Legacy systems
Indexed file
Legacy systems
Individual Master File
Legacy systems
Legacy costs
Legacy systems
Legacy mode
Legacy systems
Legacy system
Legacy systems
ORCATS
Legacy systems
OS/2
Legacy systems
OS/2 commands
OS/2
OS/2 drivers
OS/2
OS/2 files
OS/2
OS/2 people
OS/2
OS/2 software
OS/2
OS/2 technology
OS/2
ArcaOS
OS/2
EComStation
OS/2
E (PC DOS)
OS/2
Graphical Data Display Manager
OS/2
IBM LAN Server
OS/2
IBM PS/2
OS/2
Information Presentation Facility
OS/2
Installable File System
OS/2
LAN Manager
OS/2
Presentation Manager
OS/2
Team OS/2
OS/2
Windows Libraries for OS/2
OS/2
Workplace OS
OS/2
Workplace Shell
OS/2
Pick operating system
Legacy systems
SabreTalk
Legacy systems
Shadow (OS/2)
Legacy systems
Standalone program
Legacy systems
TOPS
Legacy systems
Teletex
Legacy systems
Teletext
Legacy systems
Antiope (teletext)
Teletext
Austext
Teletext
Bamboozle!
Teletext
Ceefax
Teletext
Digitiser
Teletext
Electra (teletext)
Teletext
ExtraVision
Teletext
Infonet
Teletext
JTES
Teletext
List of teletext services
Teletext
MediaCorp Teletext
Teletext
Mullard SAA5050
Teletext
NABTS
Teletext
NBC Teletext
Teletext
NexTView
Teletext
ORACLE (teletext)
Teletext
Park Avenue (teletext soap)
Teletext
Planet Sound
Teletext
Programme Delivery Control
Teletext
RTÉ Aertel
Teletext
SWISS TXT
Teletext
Same language subtitling
Teletext
Sbectel
Teletext
Sky Text
Teletext
Sports Plus Network
Teletext
Subtitles
Teletext
TVNZ Teletext
Teletext
Teletext Holidays
Teletext
Teletext Ltd.
Teletext
Teletext character set
Teletext
Televideo (teletext)
Teletext
Timeline of in vision teletext broadcasts in the UK
Teletext
Timeline of teletext in the UK
Teletext
Téacs TG4
Teletext
World System Teletext
Teletext
Backward compatibility
0
0
0
Legacy systems
Backward-compatible video game consoles
0
0
0
Backward compatibility
Binary-code compatibility
0
0
0
Backward compatibility
Bug compatibility
0
0
0
Backward compatibility
Deprecation
0
0
0
Backward compatibility
Forward compatibility
0
0
0
Backward compatibility
List of Xbox games compatible with Xbox 360
0
0
0
Backward compatibility
List of backward-compatible games for Xbox One and Series X/S
0
0
0
Backward compatibility
ProgID
0
0
0
Backward compatibility
Source-code compatibility
0
0
0
Backward compatibility
IPv4
0
0
0
Legacy systems
Address plus Port
0
0
0
IPv4
Carrier-grade NAT
0
0
0
IPv4
IPv4 address exhaustion
0
0
0
IPv4
Internet Protocol version 4
0
0
0
IPv4
List of assigned /8 IPv4 address blocks
0
0
0
IPv4
List of countries by IPv4 address allocation
0
0
0
IPv4
Legacy hardware
0
0
0
Legacy systems
Floppy disk computer storage
0
0
0
Legacy hardware
AMX Mouse
0
0
0
Legacy hardware
Atari joystick port
0
0
0
Legacy hardware
BBC Micro expansion unit
0
0
0
Legacy hardware
Bus mouse
0
0
0
Legacy hardware
Chinese language card
0
0
0
Legacy hardware
Commodore bus
0
0
0
Legacy hardware
Floppy disk
0
0
0
Legacy hardware
Floppy disk hardware emulator
0
0
0
Legacy hardware
Floppy disk variants
0
0
0
Legacy hardware
Game port
0
0
0
Legacy hardware
Hardcard
0
0
0
Legacy hardware
IEEE 1284
0
0
0
Legacy hardware
Industry Standard Architecture
0
0
0
Legacy hardware
Legacy-free PC
0
0
0
Legacy hardware
Legacy port
0
0
0
Legacy hardware
List of floppy disk formats
0
0
0
Legacy hardware
LocalTalk
0
0
0
Legacy hardware
Magneto-optical drive
0
0
0
Legacy hardware
Model F keyboard
0
0
0
Legacy hardware
Monochrome monitor
0
0
0
Legacy hardware
PC speaker
0
0
0
Legacy hardware
Parallel port
0
0
0
Legacy hardware
Serial port
0
0
0
Legacy hardware
USB-to-serial adapter
0
0
0
Legacy hardware
Write precompensation
0
0
0
Legacy hardware
X10 accelerated floppy drive
0
0
0
Legacy hardware
Minicomputers
0
0
0
Legacy systems
DEC minicomputers
0
0
0
Minicomputers
IBM minicomputers
0
0
0
Minicomputers
Minicomputer stubs
0
0
0
Minicomputers
Norsk Data minicomputers
0
0
0
Minicomputers
Unix software
0
0
0
Minicomputers
3B series computers
0
0
0
Minicomputers
AN/GYK-12
0
0
0
Minicomputers
Alpha Microsystems
0
0
0
Minicomputers
BB Tecnologia e Serviços
0
0
0
Minicomputers
BCL Molecular
0
0
0
Minicomputers
Bendix G-15
0
0
0
Minicomputers
CDC 1700
0
0
0
Minicomputers
CID-201
0
0
0
Minicomputers
Computer Control Company
0
0
0
Minicomputers
Computer Technology Limited
0
0
0
Minicomputers
DDP-24
0
0
0
Minicomputers
Data General Eclipse
0
0
0
Minicomputers
Data General Eclipse MV/8000
0
0
0
Minicomputers
Data General Nova
0
0
0
Minicomputers
Digico Limited
0
0
0
Minicomputers
Elxsi
0
0
0
Minicomputers
Flip-Chip module
0
0
0
Minicomputers
GEC 2050
0
0
0
Minicomputers
GEC 4000 series
0
0
0
Minicomputers
GEC Series 63
0
0
0
Minicomputers
General Automation
0
0
0
Minicomputers
HLH Orion
0
0
0
Minicomputers
HP 2100
0
0
0
Minicomputers
HP 3000
0
0
0
Minicomputers
Honeywell 316
0
0
0
Minicomputers
Honeywell Level 6
0
0
0
Minicomputers
Honeywell System 700
0
0
0
Minicomputers
IBM 801
0
0
0
Minicomputers
IMLAC
0
0
0
Minicomputers
Interdata
0
0
0
Minicomputers
Interdata 7/32 and 8/32
0
0
0
Minicomputers
K-202
0
0
0
Minicomputers
Lockheed MAC-16
0
0
0
Minicomputers
MERA 300
0
0
0
Minicomputers
Minicomputer
0
0
0
Minicomputers
Multum
0
0
0
Minicomputers
ND812
0
0
0
Minicomputers
Nicolet 1080
0
0
0
Minicomputers
Norsk Data
0
0
0
Minicomputers
P4000
0
0
0
Minicomputers
PC12 minicomputer
0
0
0
Minicomputers
Patinho Feio
0
0
0
Minicomputers
PowerHouse (programming language)
0
0
0
Minicomputers
Powernode 9080
0
0
0
Minicomputers
Prime Computer
0
0
0
Minicomputers
Programmed Data Processor
0
0
0
Minicomputers
Q-Bus
0
0
0
Minicomputers
RCA 1600
0
0
0
Minicomputers
Raytheon 704
0
0
0
Minicomputers
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History of computing
History of mathematics
Mathematics
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