January 2018
Beginner to intermediate
402 pages
10h 6m
English
book
Practical Mobile Forensics - Third Edition
by Rohit Tamma, Oleg Skulkin, Heather Mahalik, Satish Bommisetty
Content preview from Practical Mobile Forensics - Third Edition
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
The iOS architecture
iOS acts as an intermediary between the underlying hardware components and the applications that appear on the screen. The applications do not talk to the underlying hardware directly. Instead, they communicate through a well-defined system interface that protects the applications from hardware changes. This abstraction makes it easy to build applications that work on devices with different hardware capabilities.
The iOS architecture consists of four layers—the Cocoa Touch layer, Media layer, Core Services layer, and Core OS layer—as shown in the following figure. Each layer consists of several frameworks that help to build an application:
The iOS layers
- The Cocoa Touch layer: The Cocoa Touch layer contains the key ...