1. Apple Operating System Upgrade
  2. MacOS Big Sur - Apple - Mac OS X Leopard

About This Mac is a menu command found under all versions of Mac OS X. It resides under the Apple menu as the first menu item; the only exception was during the period of the Mac OS X Public Beta, when it resided in the Desktop menu. It can be seen as a continuation of the About This Macintosh command of the Classic Mac OS. Here are a full guide and information about Mac OS. Make you a clear cognition about Mac.- Page 10. This site uses cookies. By continuing to use this site you agree to our use of cookies in accordance with our Cookie Policy Agree. Data Recovery Software. UltData - iPhone Data Recovery.

The System Information app provides detailed specifications and other information about your Mac hardware and software, including your network and external devices. In some versions of OS X, this app is called System Profiler.

Choose Apple menu  > About This Mac. This opens an overview of your Mac, including your Mac model, processor, memory, serial number, and version of macOS. To see the greater detail provided by the System Information app, click the System Report button.

To open System Information directly, press and hold the Option key and choose Apple menu  > System Information. You can also use Spotlight to find System Information, or open it from the Utilities folder of your Applications folder.

System Information opens to a system report for your Mac:

Select items in the sidebar to see information about each item. For example:

  • The Hardware section shows your Mac serial number
  • The Memory section shows how much RAM is installed in each internal memory slot.
  • The Software section shows which startup disk (boot volume) your Mac is using.
  • The Network section shows details such as your IP address, the connections allowed by your macOS firewall, the signal strength of nearby Wi-Fi networks, and more.

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Apple Operating System Upgrade

Mac

MacOS Big Sur - Apple - Mac OS X Leopard

  • To have System Information read your serial number aloud, choose File > Speak Serial Number.
  • To save a copy of your system report, choose File > Save.
  • To learn more about System Information, choose Help > System Information Help.