📄️ About Android
Android is an open-source mobile operating system developed by Google and based on the Linux kernel. It is designed primarily for touchscreen devices such as smartphones and tablets, but is also used in smart TVs, wearables, and other smart devices. Most Android devices come with Google Mobile Services (GMS), including applications like Google Play Store and Google Chrome. Android apps can be distributed through various app stores such as Google Play Store, Amazon Appstore, Samsung Galaxy Store, Huawei AppGallery, F-Droid, Aptoide, APKPure, and APKMirror.
📄️ Android Operating System
Android is a Linux-based operating system, which means that many Linux concepts and commands apply to Android devices as well. Once shell access is obtained, users can interact with the device through a command-line interface, navigate the file system, manage files, and inspect system components.
📄️ Android Security Features
Android apps are mainly developed using Kotlin and Java, and are packaged into an APK (Android Package) file. An APK contains all components required for installation and execution, including compiled DEX bytecode, resources, native libraries, and the app manifest.
📄️ APK Structure
An APK (Android Package Kit) is the package format used to distribute and install Android applications. It is essentially a ZIP archive containing everything required for an app to run, including compiled code, resources, assets, native libraries, and configuration files.