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ReactOS VS D (Programming Language)

Compare ReactOS VS D (Programming Language) and see what are their differences

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Contents:
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  2. » Videos
  3. » Reviews
  4. » Alternatives

ReactOS logo ReactOS

ReactOS is a free, modern operating system in alpha stage, based on the design of Windows XP/2003.

D (Programming Language) logo D (Programming Language)

D is a language with C-like syntax and static typing.
  • ReactOS Landing page
    Landing page //
    2021-09-21
  • D (Programming Language) Landing page
    Landing page //
    2023-05-09

ReactOS features and specs

  • Open Source
    ReactOS is an open-source operating system, which means its source code is freely available for anyone to view, modify, and distribute. This allows developers and contributors to participate in its development and enhancement.
  • Windows Compatibility
    ReactOS aims to be binary-compatible with Windows, especially Windows Server 2003, meaning it can run many Windows applications and drivers without modification. This could be beneficial for users who rely on legacy Windows software.
  • Lightweight
    ReactOS is designed to be lightweight, requiring fewer system resources compared to modern Windows operating systems. This makes it suitable for older hardware that may not support contemporary operating systems efficiently.
  • Freedom from Licensing Costs
    Being free and open source, ReactOS eliminates the cost associated with purchasing Windows licenses, providing an alternative for users who wish to avoid these costs.

Possible disadvantages of ReactOS

  • Incomplete Development
    ReactOS is still in the alpha stage of development, which means it is not yet stable or feature-complete. This can lead to various issues such as system crashes, incomplete features, and compatibility problems.
  • Limited Application Support
    Despite its goal of Windows compatibility, ReactOS does not support all Windows applications and drivers, particularly newer ones that require features not yet implemented in ReactOS.
  • Lack of Commercial Support
    Unlike Windows, which has extensive commercial support from Microsoft and third-party service providers, ReactOS lacks official commercial support, which may be a concern for enterprise environments.
  • Security Concerns
    As ReactOS is still under development, it may not have implemented all necessary security features and updates that a more mature operating system might have, potentially leading to security vulnerabilities.

D (Programming Language) features and specs

  • Performance
    D is designed to be a high-performance systems programming language, offering performance comparable to C and C++ through native machine code compilation.
  • Expressiveness
    D features a rich standard library and modern language constructs, such as garbage collection, first-class arrays, and advanced templating, making it easier to write expressive and maintainable code.
  • Memory Safety
    D offers optional garbage collection along with manual memory management. This hybrid approach can help in developing safer applications by reducing memory-related errors.
  • Interoperability
    D can easily interoperate with C API, enabling seamless integration with existing C libraries and systems. It also supports better C++ interoperability compared to other languages.
  • Built-in Unit Testing
    D has built-in support for unit tests, allowing developers to write and run tests as part of the language itself, facilitating test-driven development.
  • Concurrency
    D offers built-in concurrency support with message passing, similar to the actor model found in languages like Erlang, making it easier to write concurrent and parallel programs.

Possible disadvantages of D (Programming Language)

  • Adoption
    D is not as widely adopted as other languages like C, C++, or Java. This limited adoption means fewer libraries, frameworks, and community support.
  • Toolchain Maturity
    While D's compilers and tools have improved over the years, they may still lack the maturity and feature set of more established languages, which can affect developer productivity.
  • Learning Curve
    D's richness and combination of paradigms (such as imperative, object-oriented, and functional programming) can present a steep learning curve for new developers.
  • Garbage Collection
    Although D offers optional garbage collection, its reliance on it for memory safety might be seen as a drawback for real-time system development where deterministic memory management is crucial.
  • Ecosystem
    The ecosystem for D is less vibrant compared to more popular languages, leading to potentially fewer third-party libraries, tools, and resources.
  • Standard Library Documentation
    The standard library documentation can be inconsistent or less comprehensive compared to other languages, making it difficult for developers to fully utilize all features of the language.

Analysis of ReactOS

Overall verdict

  • ReactOS is a promising project with potential, but it is still in the alpha stage of development. This means it may not be stable enough for everyday use and might lack support for some hardware and software. While it offers an interesting alternative to Windows, users seeking stability and complete compatibility may find it falls short.

Why this product is good

  • ReactOS is an open-source operating system intended to be binary-compatible with applications and device drivers made for Microsoft Windows. The project aims to provide users with a free alternative to Windows, which can run Windows applications natively without the need for emulation or virtualization.

Recommended for

  • Technology enthusiasts who enjoy testing and contributing to open-source projects.
  • Developers interested in operating system design and contributing to an open-source effort.
  • Users looking to experiment with a Windows-compatible OS alternative for non-critical tasks.

Analysis of D (Programming Language)

Overall verdict

  • Overall, D is a solid programming language choice that balances performance with productivity. It may not be as widely adopted as some other languages, but it has a dedicated community and continues to evolve, making it a viable option for various programming tasks.

Why this product is good

  • The D programming language is considered good by many developers for various reasons. It combines the performance and low-level control of C/C++ with the expressive power and ease of use found in modern languages. D offers features like garbage collection, first-class functions, and compile-time function execution, providing both speed and flexibility. Its interoperability with C, the convenience of a powerful standard library (Phobos), and the availability of packages via the DUB package manager make it a practical choice for systems programming, application development, and rapid prototyping.

Recommended for

  • System programming enthusiasts looking for an alternative to C/C++
  • Developers interested in writing high-performance applications
  • Programmers who appreciate modern language features and strong community support
  • Projects requiring seamless C integration
  • Individuals looking for a language that supports easy code maintenance and scalability

ReactOS videos

+ Add

ReactOS Demo

More videos:

  • Review - ReactOS 0.4.12 Review - Window Snapping, New Fonts, New Looks!
  • Review - ReactOS Is An Open Source Windows-Inspired Operating System

D (Programming Language) videos

+ Add

D Language Tutorial

Category Popularity

0-100% (relative to ReactOS and D (Programming Language))

ReactOS

D (Programming Language)

Linux
100 100%
Linux
0% 0
Programming Language
0 0%
Programming Language
100% 100
Operating Systems
100 100%
Operating Systems
0% 0
OOP
0 0%
OOP
100% 100

User comments

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Social recommendations and mentions

ReactOS might be a bit more popular than D (Programming Language). We know about 78 links to it since March 2021 and only 60 links to D (Programming Language). We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ReactOS mentions (78)

  • Microsoft Needs Windows Lite
    There is already a "Windows Lite", and it's called ReactOS [0]. Except, the last thing we need is for Microsoft to own / embrace-extend-exterminate this. It's best that it's kept as an independent project, enabling developers to target the Windows API if they feel like it, while ensuring that they only target the Wine-compatible parts of it, which then enables their software to also run seamlessly on other... - Source: Hacker News / 2 months ago
  • Microsoft's "Fix" for Windows 11: Flowers After the Beating
    Kinda off-topic, but I wonder if a hypothetical OS that reimplements the Windows APIs (like ReactOS[0], but with perfect modern hardware support) would be better for end users than a Linux distro with a modern DE. In the past, this hypothetical OS would be a revolution. But I feel that, in recent years, this gap is not as big anymore and Linux supports way more apps than in the past. Such an OS might even not be... - Source: Hacker News / 6 months ago
  • Not the Future
    On topic of less user-hostile OS , I wonder how this guys are doing: https://reactos.org/ https://elementary.io/. - Source: Hacker News / 9 months ago
  • Using GNU toolchain for Windows kernel-mode drivers
    Compiling into object code is easy but linkig is tricky. For reference of possilbe options, I used an example from ReactOS project. ReactOS is the only working (sort of) full reverse-engineered NT operating system kernel. It is a cool project. ReactOS Github repo has a collection of build options for kernel-mode drivers that can be carved out of CMake files. - Source: dev.to / 10 months ago
  • YouTube is taking down videos on performing nonstandard Windows 11 installs
    Would this help you? https://reactos.org/ This is an open source reimplementation of winxp. I think they can even run drivers made for windows now. - Source: Hacker News / 10 months ago
View more

D (Programming Language) mentions (60)

  • Ask HN: What is your (AI) dev tech stack / workflow? (June 2026)
    I've spent 2 weeks (2-4h per day) to make D language[1] version of Sciter SDK [2] Choice of AI "tooling" was by accident - typed something like "how to define copy constructor in D for custom structure" in Microsoft's Copilot in Edge browser that gives context for AI. The answer was good enough for me and so I went with it further. [1] D language HQ : https://dlang.org/. - Source: Hacker News / 3 months ago
  • Rue: Higher level than Rust, lower level than Go
    > Mostly, I am not really trying to compete with C/C++/Rust on speed, but I'm not going to add a GC either. So I'm somewhere in there. Out of curiosity, how would you compare the goals of Rue with something like D[0] or one of the ML-based languages such as OCaml[1]? 0 - https://dlang.org/ 1 - https://ocaml.org/. - Source: Hacker News / 9 months ago
  • Pony: An actor-model, capabilities-secure, high-performance programming language
    The D language home page has something similar with a drop down with code examples https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Show HN: D++lang – A new systems programming language with Python-like syntax
    What is this? There's a lot of red flags here. * The name "D" for a programming language was taken in 1999: https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Koto Programming Language
    >For me the biggest gap in programming languages is a rust like language with a garbage collector, instead of a borrow checker. I cannot agree more that's the much needed sweet spot/Goldilock/etc. Personally I have been advocating this approach for some times. Apparently the language is already widely available and currently has stable and wide compiler support including the venerable GNU compiler suite (GDC). It... - Source: Hacker News / over 1 year ago
View more

What are some alternatives?

When comparing ReactOS and D (Programming Language), you can also consider the following products

Linux Mint - Linux Mint is one of the most popular desktop Linux distributions and used by millions of people.

C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation

Ubuntu - Ubuntu is a Debian Linux-based open source operating system for desktop computers.

Nim (programming language) - The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.

Debian - Debian is a free distribution of the GNU/Linux operating system.

V (programming language) - Simple, fast, safe, compiled language for developing maintainable software.

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