macOS Sierra requires at least 2 GB of RAM and 8 GB of storage space and is designed to run on the following products:
• iMac (Late 2009 or later)
• MacBook (Late 2009 or later) See more

macOS Sierra has received generally positive reviews. Users and critics have praised its functionality, including the addition of Siri and support for Apple Pay in Safari. Macworld gave it 4.5 stars out of 5. Engadget gave it a rating of 87 out of 100 praising the new … See more

Default wallpaper
The default desktop picture is an image of Lone Pine Peak.
System features
Siri
The user can access the Siri intelligent assistant via the See more

• macOS 10.12 Sierra at the Wayback Machine (archived August 30, 2017) – official site
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