# iOS Basics

<figure><img src="/files/sIUxPa2rzPkuKqYOwBFR" alt=""><figcaption></figcaption></figure>

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## iOS Architecture Layers

### Introduction

Same core OS layer for MacOS, iOS, visionOS

<figure><img src="/files/aPArRoqPgRcQrJJ5OQGx" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/tcG7zuD0o0wmT1jQMTCR" alt=""><figcaption></figcaption></figure>

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### Core OS Layer

<figure><img src="/files/JJwVOGLkNNAhS2OAviHx" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/4VPlSgBJf6c5k6WPNuuO" alt=""><figcaption></figcaption></figure>

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### Core Services

<figure><img src="/files/HjjVutV40qLAa4tNGYvA" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Egf8NjiWlmbXGDaKffZY" alt=""><figcaption></figcaption></figure>

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### Media

<figure><img src="/files/IF83OjRX0HaNORap29hf" alt=""><figcaption></figcaption></figure>

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### Cocoa Touch Layer

<figure><img src="/files/2qkeAn4y7WRTpfnp2PjY" alt=""><figcaption></figcaption></figure>

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## iOS Security Features

<figure><img src="/files/Gn4etfXv6knMof4y2plD" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/OiiL2yGvLftQLQjk44i0" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/R7TlStkNZovHtGY62V1G" alt=""><figcaption></figcaption></figure>

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### Software Security

<figure><img src="/files/jU8pNnndVB3y0iwgM3kH" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/kOVmNdZpYd7Y2ZaWJQWK" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/oFXAznSrBFrAGkiQ5uOC" alt=""><figcaption></figcaption></figure>

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### Privacy and User Control

<figure><img src="/files/ZK5zK0fhlFcLafgM7fdc" alt=""><figcaption></figcaption></figure>

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### Network Security

<figure><img src="/files/ZunkHc8cgz4NUqWrFdOQ" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/b0KTTsqvaM1sG6rXZ6iE" alt=""><figcaption></figcaption></figure>

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### Application and System Security

<figure><img src="/files/JMAYhYvvAr6tPNhU8ipf" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/jHUgVv6s48m3v1QYMtXM" alt=""><figcaption></figcaption></figure>

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## iOS Application Structure

<figure><img src="/files/XZ6iVUIcaGp0reeGZiTv" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/CAJxwJZZpelcYrTXTbTk" alt=""><figcaption></figcaption></figure>


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