Mac OS Big Sur is the latest operating system created by Apple Inc. for their Mac computers. It is a major update to the previous macOS version and brings a variety of new features and visual changes to the user interface. This includes a redesigned dock and menu bar, improved notifications, and many more enhancements to the overall user experience. Mac OS Big Sur also brings improved performance and security improvements to the Mac platform.

Mac OS – An Overview

Mac OS is the operating system developed by Apple Inc. for its Macintosh line of computers. Mac OS is known for its user-friendly interface, sleek design, and advanced security features. It is widely regarded as one of the best operating systems in the market. The latest version of Mac OS is Big Sur, which was released in November 2020.

The Evolution of Mac OS

Mac OS has come a long way since its inception in 1984. It has gone through several iterations, with each version bringing new features and improvements. Some of the notable versions of Mac OS include:

  • Mac OS X: This version introduced a new interface, improved performance, and advanced features such as Spotlight and Dashboard.
  • Mac OS X Leopard: This version introduced a new desktop and improved security features.
  • Mac OS X Yosemite: This version introduced a new design language and improved integration with iOS devices.

Big Sur – What’s New?

Big Sur is the latest version of Mac OS, and it comes with several new features and improvements. Here are some of the notable changes:

Redesigned Interface

Big Sur features a completely redesigned interface with new icons, menus, and windows. The interface is more modern and streamlined, with a focus on simplicity and ease of use.

Control Center

Big Sur introduces a new feature called Control Center, which provides quick access to frequently used settings such as Wi-Fi, Bluetooth, and display brightness. Control Center is similar to the one found in iOS devices.


Safari, the default web browser on Mac OS, has received several improvements in Big Sur. It now features a customizable start page, improved tab management, and better privacy controls.


Messages, the messaging app on Mac OS, has been updated with new features such as inline replies, mentions, and new Memoji stickers.


Big Sur comes with improved privacy features, including a new privacy report that shows which websites are tracking you and a new feature that requires apps to ask for permission before accessing sensitive data such as your location, camera, and microphone.

FAQs – What is Mac OS Big Sur?

What is Mac OS Big Sur?

Mac OS Big Sur is the latest operating system released by Apple Inc. It is the 11th major release of the Mac operating system and was introduced on June 22, 2020, at the annual Worldwide Developers Conference. The operating system is named after the seaside mountains in California and comes with major updates to the user interface, features, and performance.

What are the new features of Mac OS Big Sur?

Mac OS Big Sur comes with many new and exciting features, including a refreshed design user interface, new control center, and notification center, built-in widgets, new messaging features, and new privacy and security enhancements. It also brings about several system-level updates, including faster app launches, reduced memory usage, and improved battery efficiency.

What do I need to run Mac OS Big Sur?

To run Mac OS Big Sur, you’ll need a Mac device that is compatible with the operating system. The list of Mac devices that support Mac OS Big Sur includes MacBook Air (Mid 2013 and later), MacBook Pro (Late 2013 and later), Mac mini (Late 2014 and later), iMac (Late 2014 and later), iMac Pro (all models), Mac Pro (Late 2013 and later), and MacBook (Early 2015 and later). Your device should also have at least 4 GB of RAM, 35.5 GB of available storage, and be running OS X 10.9.5 or later.

How do I upgrade to Mac OS Big Sur?

To upgrade to Mac OS Big Sur, you can either do it through the App Store or the System Preferences. First, ensure that your Mac device is compatible with the operating system. Secondly, back up all your files and data to avoid losing them during the upgrade process. Once you’re sure you want to proceed with the upgrade, open the App Store or the System Preferences, select the software update option, and follow the instructions on the screen to initiate the download and installation of Mac OS Big Sur.

Can I downgrade from Mac OS Big Sur to the previous version?

In most cases, it’s not possible to downgrade to the previous version of Mac OS once you’ve upgraded to Big Sur. However, if you have created a backup of your files before the upgrade, you can restore your device using the Time Machine backup and revert to the previous version of the operating system. It’s, however, worth noting that restoring from a backup is not a straightforward process and may lead to data loss if not properly done.

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