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POSIM System Requirements for Mac OS

For best results, ensure the POSIM Server computer meets or exceeds system requirements

Operating Systems

  • macOS 12 (Monterey)
  • macOS 11 (Big Sur)
  • macOS 10.15 (Catalina)

CPU Speed and Type

  • Server: 2.5+ GHz QuadCore (64 Bit)
  • Clients: 2.0+ GHz DualCore (64 Bit)


  • Server: 8+ GB
  • Clients: 4+ GB


  • Server: SSD
  • Client: SSD or HDD 7200+ RPM
  • 15+ GB available

Monitor Resolution

  • 1024 x 768 minimum
    • NOTE: Dock must be hidden to use the minimum resolution

Backup Method


  • Wired or Wireless Network
    • Recommended: Wired network (1 Gigabit+) for optimal performance
  • Click here for remote database connection options


  • High-Speed Internet required for credit card processing and remote assistance

Supported Hardware

  • USB Star TSP 100 Receipt Printer
  • USB Zebra 2824 Plus or ZD410 Barcode Printer
  • USB APG or MS Cash Drawer
  • Any USB Invoice Printer (8.5 x 11)
  • Any USB Barcode Scanner
  • Any USB Credit Card Scanner (Track 2)


Note on Server OS: A server OS is not needed. For this reason, a server OS is not used in software testing. POSIM should still run on a server OS, but they are not officially supported.