The Software section shows which startup disk (boot volume) your Mac is using.The Memory section shows how much RAM is installed in each internal memory slot.The Hardware section shows your Mac serial number.Select items in the sidebar to see information about each item. System Information opens to a system report for your Mac: You can also use Spotlight to find System Information, or open it from the Utilities folder of your Applications folder. To open System Information directly, press and hold the Option key and choose Apple menu > System Information. 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.
