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IOS 4: History, Overview & System features

iOS 4 is the fourth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 3. It was announced at the Apple Special Event on April 8, 2010, and released on June 21, 2010. iOS 4 was the first version branded as "iOS" rather than "iPhone OS", due to the release of the iPad. It was succeeded by iOS 5 on…

Language: English [EN]
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IOS 4 topic overview

The analysis highlights History, Overview and System features as prominent areas in the source structure around IOS 4.

Related topics
37
Source areas
5
Connected nodes
42
Extracted relationships
64
Concept neighborhoods
27
Bridge connections
42

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 · 21 topics
System features · 9 topics
Apps · 3 topics
Supported devices · 3 topics
History · 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.

Developer
Apple Inc.
Initial release
June 21, 2010; 16 years ago (2010-06-21)
Kernel type
Hybrid (XNU)
Latest release
iPhone 3G, iPod Touch (2nd generation) 4.2.1 (November 22, 2010; 15 years ago (2010-11-22)) [±] iPhone 4 (CDMA) 4.2.10 (July 25, 2011; 15 years ago (2011-07-25)) [±] iPhone 3GS,…
License
Proprietary EULA except for open-source components
Official website
Apple – iPhone – New features in the iOS 4 Update at the Wayback Machine (archived June 30, 2010)

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

Apps

History

System features

Supported devices

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 IOS 4 connects Entity context

The extracted context around IOS 4 shows recurring relationship patterns in the source. For example, IOS 4 → Apple Special Event, April, At, June, OS, Touch, WWDC Another extracted example is IOS 4 → Fast App Switching, Internet, It, Multitasking, Tapping, This, Touch. Use these groups to spot repeated connection types before inspecting the individual relationships.

IOS 4

Top relations

related to history · 7
IOS 4 → Apple Special Event, April, At, June, OS, Touch, WWDC
related to Multitasking · 7
IOS 4 → Fast App Switching, Internet, It, Multitasking, Tapping, This, Touch
related to Apps · 5
IOS 4 → Exchange, Game Center, It, MobileMe, The Mail
related to Performance and battery issues · 5
IOS 4 → Apple, August, Consumer Legal Remedies Act, In November, July
related to Safari · 5
IOS 4 → Beginning, Bing, Google, The Safari, Yahoo
related to Reception · 4
IOS 4 → FaceTime, However, Retina Display, Touch
related to Supported devices · 4
IOS 4 → Apple, The, This, Touch
related to Antenna problems · 3
IOS 4 → Antennagate, Apple, Upon
related to FaceTime · 3
IOS 4 → FaceTime, This, Touch
is a · 2
IOS 4 → final version of iOS that features the iPod app for music and videos on iPhones and iPads, fourth major release of the iOS mobile operating system developed by Apple Inc

Important terminology

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

Important terminology

ios iphone apple ipod app touch apps added issues support feature 3g due introduced ipad performance users also home version

IOS 4 relationships Subject–Predicate–Object triples

TTTA extracted 64 structured relationships around IOS 4. Examples in this analysis include IOS 4 → Developer → Apple Inc. and IOS 4 → Initial release → June 21, 2010; 16 years ago (2010-06-21). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
IOS 4DeveloperApple Inc.1.00infobox
IOS 4Initial releaseJune 21, 2010; 16 years ago (2010-06-21)1.00infobox
IOS 4Kernel typeHybrid (XNU)1.00infobox
IOS 4Latest releaseiPhone 3G, iPod Touch (2nd generation) 4.2.1 (November 22, 2010; 15 years ago (2010-11-22)) [±] iPhone 4 (CDMA) 4.2.10 (July 25, 2011; 15 years ago (2011-07-25)) [±] iPhone 3GS,…1.00infobox
IOS 4LicenseProprietary EULA except for open-source components1.00infobox
IOS 4Official websiteApple – iPhone – New features in the iOS 4 Update at the Wayback Machine (archived June 30, 2010)1.00infobox
IOS 4Package managerApp Store1.00infobox
IOS 4Preceded byiPhone OS 31.00infobox
IOS 4Source modelClosed, with open source components1.00infobox
IOS 4Succeeded byiOS 51.00infobox
IOS 4Supported platformsiPhone, iPod Touch, iPad1.00infobox
IOS 4Update methodiTunes through a computer1.00infobox
IOS 4Working stateNo longer supported1.00infobox
IOS 4is afourth major release of the iOS mobile operating system developed by Apple Inc0.90text
IOS 4is afinal version of iOS that features the iPod app for music and videos on iPhones and iPads0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around IOS 4 bring nearby vocabulary together. In this analysis, examples include Iphone, App and Ipod. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • IOS 4
    • Iphone
    • App
    • Ipod
    • Introduced
    • Touch
    • 3g
    • Apple
    • Apps
    • Issues
    • Facetime
    • Folders
    • Os
  • ios 4
    • Iphone
    • App
    • Ipod
    • Introduced
    • Touch
    • 3g
    • Apple
    • Apps
    • Issues
    • Facetime
    • Folders
    • Os
  • ios
    • Iphone
    • App
    • Ipod
    • Introduced
    • Touch
    • 3g
    • Apple
    • Apps
    • Issues
    • Facetime
    • Folders
    • Os
  • mobile operating system
    • System
    • Facetime
    • Multitasking
    • Added
    • Calling
    • Apps
    • Ibooks
    • Battery
    • Devices
    • Version
    • Also
    • Features
  • apple inc.
    • Operating
    • System
    • Iphone
    • Problems
    • Release
    • Inc
    • Updates
    • Ios
    • Version
    • Features
    • Os
    • Ipad
  • iphone os 3
    • Ipad
    • Ipod
    • Touch
    • 3g
    • Release
    • Ibooks
    • June
    • Performance
    • Due
    • Feature
    • Introduced
    • Issues
  • ipad
    • Os
    • Screen
    • Added
    • Home
    • Ibooks
    • Iphone
    • June
    • Touch
    • Ipod
    • Version
    • Facetime
    • Features
  • ios 5
    • Iphone
    • App
    • Ipod
    • Introduced
    • Touch
    • 3g
    • Apple
    • Apps
    • Issues
    • Facetime
    • Folders
    • Os

Connections between topic areas Semantic bridges

For IOS 4, one of the stronger structural bridges in this analysis connects IOS 4 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
IOS 4 — Overview · splits 21 ⟂ 22
IOS 4 — System features · splits 33 ⟂ 10
IOS 4 — Apps · splits 39 ⟂ 4
IOS 4 — Supported devices · splits 39 ⟂ 4

Map overview Semantic statistics

IOS 4

Nodes43
Edges42
Triples64
Avg. degree1.95
Density0.046512
Components1

Source & methodology

TTTA analyzes the structure around IOS 4 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Overview & System features, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — IOS 4 · EN edition · Analysis: TopicsToTalkAbout

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