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Open Source for Beginners

Open Source

Proprietary Software

Proprietary Software

Proprietary software refers to applications and operating systems distributed under restrictive licenses, where the publisher retains exclusive rights to the source code. In the early days of computing, vendors enforced legal protections—often via non-disclosure agreements (NDAs)—to prevent unauthorized access or modification.

Note

Users must agree to End User License Agreements (EULAs) before installing or using proprietary software.

The image compares proprietary and open-source software, using icons and labels to represent each type. The proprietary software is on the left, and the open-source software is on the right with a lock symbol.

Key Characteristics

  • Closed Source: The source code is not publicly available.
  • Licensed Use: Redistribution, modification, and reverse engineering are restricted.
  • Vendor Support: Updates, patches, and technical support are provided by the owning company.
Operating SystemVendorLicense Type
macOSApple Inc.Proprietary License
WindowsMicrosoft Corp.Proprietary License

Warning

Relying on proprietary software can lead to vendor lock-in and ongoing licensing costs. Assess long-term maintenance and upgrade fees before committing.

References

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