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Mathematica > Systems Interfaces & Deployment > Mathematica System Setup >
System Information
Mathematica gives convenient machine-independent programmatic access to a broad range of information about your computer system.
SystemInformation — information on kernel, front end and computer system
    
$Version — Mathematica kernel version
$VersionNumber  ▪ $ReleaseNumber  ▪ $CreationDate
    
$System — human-readable computer system type
$SystemID — binary-compatible system identifier ("Windows", "Windows-x86-64", etc.)
$OperatingSystem — basic operating system ("Windows", "MacOSX", "Unix")
$MachineType — basic machine type ("PC", "Macintosh", "Sun", etc.)
$SystemWordLength — 32-bit or 64-bit machine
$ProcessorType  ▪ $ByteOrdering  ▪ $SystemCharacterEncoding  ▪ $TimeUnit
Machine Numerics
$MachinePrecision  ▪ $MachineEpsilon  ▪ $MaxMachineNumber  ▪ $MinMachineNumber  ▪ $MaxNumber  ▪ $MinNumber
System Environment
Environment  ▪ $UserName  ▪ $ProcessID  ▪ $ParentProcessID  ▪ $CommandLine
System & License Management »
$MachineName  ▪ $MachineID  ▪ $LicenseID  ▪ $MachineDomains  ▪ ...
    
System Capabilities
$Packages  ▪ $ImportFormats  ▪ $ExportFormats  ▪ $CharacterEncodings
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