Android Jelly Bean: The Ultimate Android Quiz

"Project Butter" was a significant improvement introduced in Android Jelly Bean (4.1) aimed at enhancing the overall user experience. It involved various optimizations such as touch anticipation, triple buffering, and maintaining a fixed frame rate of 60 frames per second (fps). These enhancements resulted in a noticeably smoother and more responsive user interface, making interactions with the device feel more fluid and seamless.

Android Jelly Bean (4.1) was officially released to the Android Open Source Project on July 9, 2012. This marked the introduction of several new features and improvements, including the implementation of "Project Butter" to enhance the performance and responsiveness of the user interface.

The Nexus 7 tablet, manufactured by Google in collaboration with Asus, was the first device to run Android Jelly Bean. It was released shortly after the official unveiling of Jelly Bean and showcased the new features and capabilities of the operating system.

Google used the slogan "A new flavor of Jelly Bean" to introduce Android Jelly Bean 4.2. This version brought forth a range of enhancements and additions, further refining the user experience and introducing new features like multiple user accounts for tablets.

Android Jelly Bean 4.2 introduced support for multiple user accounts, primarily targeted at tablets. This feature allowed different users to have their personalized settings, apps, and data on the same device, enhancing privacy and usability in multi-user environments.

The "Quick Settings" feature, allowing users to quickly access commonly used settings, was introduced in Android Jelly Bean 4.2. It provided convenient shortcuts to toggle settings like Wi-Fi, Bluetooth, and brightness directly from the notification shade.

"Daydream" screensavers in Android Jelly Bean displayed useful information or visualizations when the device was idle or docked. This feature allowed users to customize what appeared on their screen when the device was not in use, providing both utility and aesthetic appeal.

Android Jelly Bean 4.3 introduced the "App Ops" permissions control system, allowing users to granularly manage permissions for individual apps. Although hidden by default, this feature provided users with more control over their privacy and security settings.

Android Jelly Bean 4.3 brought support for OpenGL ES 3.0, a graphics API that enabled developers to create visually stunning and immersive 3D graphics in their apps and games. This enhancement opened up new possibilities for graphics-intensive applications on the Android platform.

Bluetooth gamepad support was added in Android Jelly Bean 4.2.1, allowing users to connect and use Bluetooth-enabled gamepads and joysticks for gaming purposes. This feature enhanced the gaming experience on Android devices, particularly for those who preferred physical controllers.

Widget support on the lock screen was initially introduced in Android Jelly Bean 4.2 but was temporarily removed in later versions due to security concerns. However, it was reintroduced in subsequent Android updates, offering users the ability to interact with widgets directly from the lock screen.

Android Jelly Bean 4.1 used the Linux kernel version 3.0.31 as its foundation. The kernel serves as the core component of the operating system, responsible for managing hardware resources and providing essential services to the software layers above it.

The Fraunhofer FDK AAC codec became the standard audio codec in Android Jelly Bean, replacing previous codecs for audio encoding and decoding. This change improved audio quality and efficiency, enhancing the overall multimedia experience on Android devices.

Android Jelly Bean 4.2 introduced a significant change in the Bluetooth stack, transitioning from the Bluez stack to Broadcom's open-source BlueDroid stack. This transition improved Bluetooth compatibility and performance, particularly in areas such as multiple display support and wireless display functionality.

SELinux (Security-Enhanced Linux) in Android Jelly Bean provided enhanced security features and access controls at the kernel level. By enforcing mandatory access controls, SELinux helped protect the operating system against security vulnerabilities and unauthorized access, contributing to a more secure Android ecosystem.