Os X Mavericks 10.9

Since "piece" can have a few different meanings in this context, here are the most likely interpretations of your request:

While the visual changes were notable, the "pro" features were hidden in the code. Apple introduced several core technologies to improve battery life and responsiveness:

When system memory began to fill up, Mavericks would compress the data of inactive apps, making the Mac feel faster even under heavy workloads. Legacy and Compatibility os x mavericks 10.9

Automatically slowed down apps that were hidden behind other windows to save energy.

Before Mavericks, using multiple monitors on a Mac was often a clunky experience. Mavericks fixed this by treating each display as an independent entity. Users could finally access the Menu Bar and the Dock on every screen, and apps could be run in full-screen mode on one monitor without blacking out the others. 2. Finder Tabs and Tags Since "piece" can have a few different meanings

Perhaps the biggest headline of the Mavericks launch wasn't a feature at all—it was the price. For the first time, Apple offered a major OS X upgrade to all compatible Mac users. This move effectively ended the era of paying $19.99 or $29.99 for software updates, forcing a shift in the industry and ensuring that Mac users stayed on the same version of the software. A New Visual Direction: Goodbye, Skeuomorphism

: This technology bundles low-level background tasks together to reduce the frequency with which the CPU needs to wake from an idle state, significantly boosting battery life. Key Features and User Experience Before Mavericks, using multiple monitors on a Mac

Grouped low-level tasks together to give the CPU more time to rest.

On October 22, 2013, Apple released OS X 10.9, codenamed "Mavericks." At first glance, it was a standard iterative update: a new version of the Mac operating system with a few hundred new features, better performance, and a name shift from California’s big cats to its surfing spots. However, Mavericks was a watershed moment, not because of what it added technologically, but because of what it signaled economically and philosophically. With Mavericks, Apple declared that the operating system was no longer a profit center but a foundational layer of its ecosystem. By making the upgrade free and focusing obsessively on efficiency and battery life, Apple fundamentally changed the relationship between the user and the Mac.

OS X Mavericks holds a unique . It was the first version of OS X to break the tradition of being named after big cats (like Leopard, Lion, or Tiger). Instead, it was named after a surfing location in California. This marked the beginning of the "California naming scheme" (Yosemite, El Capitan, Sierra, etc.).

The primary goal of Mavericks was to improve performance and power efficiency across all supported Mac hardware.