macOS

macOS is a Unix-based operating system developed by Apple Inc. for its Macintosh line of computers, providing a graphical user interface, robust security features, and seamless integration with Apple's ecosystem. It is built on a foundation of Darwin (a Unix-like system) and includes technologies like Cocoa, Metal, and SwiftUI for app development.

Also known as: Mac OS, Mac OS X, OS X, Apple macOS, Macintosh Operating System
🧊Why learn macOS?

Developers should learn macOS for building native applications for Apple's Mac computers, especially when targeting the Apple ecosystem (e.g., iOS, iPadOS, watchOS integration) or developing software that leverages macOS-specific features like Metal for graphics or Core Data for persistence. It is essential for roles in macOS app development, system administration on Macs, or cross-platform development using tools like Xcode.

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.NET
.NET is a free, cross-platform, open-source developer platform for building many types of applications, including web, mobile, desktop, games, IoT, and cloud services. It provides a unified runtime and framework with extensive libraries and tools, supporting multiple programming languages like C#, F#, and Visual Basic. The platform includes the .NET runtime (Common Language Runtime or CLR), the .NET SDK, and frameworks such as ASP.NET Core for web development and Entity Framework for data access.
.NET
.NET is a free, cross-platform, open-source developer platform for building many types of applications, including web, mobile, desktop, games, IoT, and cloud services. It provides a unified runtime and framework with libraries for common tasks, supporting multiple programming languages like C#, F#, and Visual Basic. The platform includes tools for development, debugging, and deployment across various operating systems.
.NET
.NET is a free, cross-platform, open-source developer platform for building many types of applications, including web, mobile, desktop, games, IoT, and cloud services. It provides a unified runtime and framework with libraries for common tasks, supporting multiple programming languages like C#, F#, and Visual Basic. The platform includes tools for development, debugging, and deployment, enabling developers to create high-performance, scalable applications.
.NET 5
.NET 5 is a cross-platform, open-source development platform for building modern applications, including web, mobile, desktop, cloud, and IoT. It unified the previously separate .NET Framework, .NET Core, and Xamarin into a single platform, offering improved performance, simplified deployment, and a consistent API surface. It serves as a foundation for building applications with languages like C#, F#, and Visual Basic.
.NET Core
.NET Core is a free, open-source, cross-platform framework for building modern applications, including web, cloud, mobile, desktop, IoT, and AI solutions. It is a modular, high-performance runtime and library set that supports multiple programming languages like C#, F#, and Visual Basic, and is designed to run on Windows, Linux, and macOS. It succeeded the older .NET Framework and is now part of the unified .NET platform.
.NET Framework
.NET Framework is a proprietary software framework developed by Microsoft that provides a runtime environment and a comprehensive class library for building and running applications on Windows. It supports multiple programming languages, primarily C#, VB.NET, and F#, and includes features like memory management, security, and exception handling. It is widely used for developing desktop applications, web services, and enterprise software.