System 7.5.2

E911874

classic Mac OS version operating system release

System 7.5.2 is a mid-1990s classic Mac OS release that introduced support for early Power Macintosh systems and improved stability and performance over earlier System 7 versions.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (3)

Label	Occurrences
System 7.5	2
System 7.5.2 canonical	2
Mac OS 7.6	1

How this entity was disambiguated

This entity first appeared as the object of triple T11207513 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: System 7.5.2
Context triple: [Power Macintosh 9500, operatingSystem, System 7.5.2]

A. Macintosh System 2.1
Macintosh System 2.1 is an early version of Apple’s classic Mac OS that marked a significant step in the platform’s evolution by adding support for the Hierarchical File System and improving overall system capabilities.
B. System 7 (early versions)
System 7 (early versions) is an early 1990s generation of Apple’s classic Mac OS that introduced features like virtual memory, personal file sharing, and improved multitasking to Macintosh computers.
C. System 5
System 5 is an early version of Apple’s classic Macintosh operating system used on machines like the Macintosh Plus in the late 1980s.
D. System 6
System 6 is a classic Apple Macintosh operating system from the late 1980s known for its compact, stable graphical environment used on early Macs like the Macintosh SE.
E. Mac OS 9
Mac OS 9 is the final major release of Apple's classic Mac OS line, known for features like Sherlock 2, improved internet integration, and serving as a bridge before the transition to Mac OS X.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: System 7.5.2
Target entity description: System 7.5.2 is a mid-1990s classic Mac OS release that introduced support for early Power Macintosh systems and improved stability and performance over earlier System 7 versions.

A. Macintosh System 2.1
Macintosh System 2.1 is an early version of Apple’s classic Mac OS that marked a significant step in the platform’s evolution by adding support for the Hierarchical File System and improving overall system capabilities.
B. System 7 (early versions)
System 7 (early versions) is an early 1990s generation of Apple’s classic Mac OS that introduced features like virtual memory, personal file sharing, and improved multitasking to Macintosh computers.
C. System 5
System 5 is an early version of Apple’s classic Macintosh operating system used on machines like the Macintosh Plus in the late 1980s.
D. System 6
System 6 is a classic Apple Macintosh operating system from the late 1980s known for its compact, stable graphical environment used on early Macs like the Macintosh SE.
E. Mac OS 9
Mac OS 9 is the final major release of Apple's classic Mac OS line, known for features like Sherlock 2, improved internet integration, and serving as a bridge before the transition to Mac OS X.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	classic Mac OS version ⓘ operating system release ⓘ
basedOn	System 7.5 ⓘ
bootableOn	Power Macintosh 6100 series NERFINISHED ⓘ Power Macintosh 7100 series NERFINISHED ⓘ Power Macintosh 8100 series NERFINISHED ⓘ
companyCountry	United States NERFINISHED ⓘ
developer	Apple Computer, Inc. NERFINISHED ⓘ
developerLanguage	C ⓘ assembly language ⓘ
distributionMedium	CD-ROM ⓘ floppy disk ⓘ
includedComponent	Finder NERFINISHED ⓘ Mac OS Toolbox NERFINISHED ⓘ
intendedUse	desktop computing ⓘ personal computing ⓘ
kernelType	monolithic kernel ⓘ
license	proprietary software license ⓘ
marketingName	System 7.5.2 ⓘ
multitaskingModel	cooperative multitasking ⓘ
notableFeature	improved performance over earlier System 7 versions ⓘ improved stability over earlier System 7 versions ⓘ support for early Power Macintosh systems ⓘ
operatingSystemFamily	System 7 NERFINISHED ⓘ classic Mac OS NERFINISHED ⓘ
partOf	Mac OS System 7 line NERFINISHED ⓘ
platform	Macintosh NERFINISHED ⓘ
predecessor	System 7.5.1 NERFINISHED ⓘ
releasePeriod	mid-1990s ⓘ
softwareType	operating system ⓘ system software ⓘ
successor	System 7.5.3 NERFINISHED ⓘ
supportedArchitecture	68k ⓘ PowerPC NERFINISHED ⓘ
supports	Macintosh Toolbox APIs NERFINISHED ⓘ Macintosh file system (HFS) NERFINISHED ⓘ QuickDraw graphics system NERFINISHED ⓘ
supportsGUI	yes ⓘ
supportsMultitasking	cooperative multitasking ⓘ
supportsNetworking	AppleTalk NERFINISHED ⓘ TCP/IP (via extensions) NERFINISHED ⓘ
targetHardware	68k Macintosh models ⓘ early Power Macintosh models ⓘ
upgradePathTo	Mac OS 8 NERFINISHED ⓘ
userInterface	Macintosh graphical user interface NERFINISHED ⓘ

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Power Macintosh 9500 → operatingSystem → System 7.5.2 ⓘ

Power Macintosh 9500 → supportedOperatingSystem → System 7.5.2 ⓘ

Macintosh Performa 475 → supportsOperatingSystem → System 7.5.2 ⓘ

this entity surface form: System 7.5

Macintosh Performa 580 → supportsOperatingSystem → System 7.5.2 ⓘ