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SystemInformation[]

gives detailed information about the Wolfram System being run.

SystemInformation["comp"]

gives a list of rules with information about the component "comp".

SystemInformation["comp","prop"]

gives the value of property "prop" for component "comp".

Details
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Properties & Relations  
Possible Issues  
Interactive Examples  
See Also
Related Guides
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History
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SystemInformation

SystemInformation[]

gives detailed information about the Wolfram System being run.

SystemInformation["comp"]

gives a list of rules with information about the component "comp".

SystemInformation["comp","prop"]

gives the value of property "prop" for component "comp".

Details

  • When run in a notebook interface, the output of SystemInformation[] displays in graphical form.
  • SystemInformation[All] always gives a list of rules.
  • Typical possible components to specify include:
  • "Kernel"Wolfram Language kernel used for evaluation
    "FrontEnd"Wolfram System front end used for display
    "Links"external links
    "Devices"devices, drivers, etc.
    "Network"network connectivity
    "Machine"available memory, memory in use, page size, etc.
  • SystemInformation["comp","Properties"] gives a list of names of properties for component "comp".
  • SystemInformation["Components"] gives a list of names of components.
  • SystemInformation["Small"] gives an abbreviated list of useful properties.
  • SystemInformation gives information on the kernel in which it is evaluated, and the front end in which it is displayed.
  • SystemInformation["comp",…] returns Missing["NotActive"] if the specified component is not active in your current system.

Examples

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Basic Examples  (5)

Display system information; browse to the relevant tab for details:

Wolfram Language code: SystemInformation[]

Get currently open streams:

Wolfram Language code: SystemInformation["Links", "OpenStreams"]

Get the total memory available on a machine:

Wolfram Language code: SystemInformation["Machine", "PhysicalTotal"]

Display information about connected displays:

Wolfram Language code: SystemInformation["Devices", "ScreenInformation"]

Information about installed documentation:

Wolfram Language code: SystemInformation["FrontEnd", "DocumentationInformation"]

Scope  (4)

Get a list of all known components:

Wolfram Language code: SystemInformation["Components"]

Get a list of all available properties for a given component:

Wolfram Language code: SystemInformation["FrontEnd", "Properties"]

Get the value of a particular property:

Wolfram Language code: SystemInformation["FrontEnd", "ProcessID"]

Get an abbreviated list of properties:

Wolfram Language code: SystemInformation["Small"]

Properties & Relations  (1)

Certain SystemInformation properties are directly related to a built-in system function:

Wolfram Language code: SystemInformation["Kernel", "ProcessID"] === $ProcessID
Wolfram Language code: SystemInformation["Kernel", "Version"] === $Version
Wolfram Language code: SystemInformation["Links", "OpenWSTPConnections"] === Links[]
Wolfram Language code: {SystemInformation["Machine", "MemoryAvailable"], MemoryAvailable[]}

Possible Issues  (1)

Screen area measurements in points, not pixels:

Wolfram Language code: SystemInformation["Devices", "ScreenInformation"]

To compute pixel measurements, query the dimension in points and the resolution in pixels per inch:

Wolfram Language code: points = "FullScreenArea" /. First[SystemInformation["Devices", "ScreenInformation"]]
Wolfram Language code: resolution = "Resolution" /. First[SystemInformation["Devices", "ScreenInformation"]]

Scale the points values by the resolution/72 to determine the corresponding pixel values:

Wolfram Language code: points * (resolution / 72.)

Interactive Examples  (1)

Dynamically monitor machine properties:

Wolfram Language code: Dynamic[Column@SystemInformation["Machine"], UpdateInterval -> 1]
Wolfram Research (2007), SystemInformation, Wolfram Language function, https://reference.wolfram.com/language/ref/SystemInformation.html (updated 2017).

Text

Wolfram Research (2007), SystemInformation, Wolfram Language function, https://reference.wolfram.com/language/ref/SystemInformation.html (updated 2017).

CMS

Wolfram Language. 2007. "SystemInformation." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2017. https://reference.wolfram.com/language/ref/SystemInformation.html.

APA

Wolfram Language. (2007). SystemInformation. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/SystemInformation.html

BibTeX

@misc{reference.wolfram_2026_systeminformation, author="Wolfram Research", title="{SystemInformation}", year="2017", howpublished="\url{https://reference.wolfram.com/language/ref/SystemInformation.html}", note=[Accessed: 15-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_systeminformation, organization={Wolfram Research}, title={SystemInformation}, year={2017}, url={https://reference.wolfram.com/language/ref/SystemInformation.html}, note=[Accessed: 15-June-2026]}