Similar to Darwin_(オペレーティングシステム)

Secure Enclave

MacOS Tahoe

AirDrop

AirPlay

AirPrint

Apple Books

Apple Configurator

Apple File System

Apple Intelligence

Apple Pay

Apple Push Notification service

AVFoundation

Core Animation

Cover Flow

FaceTime

Apple Home

IMessage

Metal (API)

NeXTSTEP

Objective-C

Darwin (operating system)#OpenDarwin

OpenStep

Rhapsody (operating system)

Safari (web browser)

Siri

Swift (programming language)

Apple TV app