Week 1 Introduction to App Development with .NET & .NET Overview

.NET Architecture & Component stack

CLR, FCL, APP

Difference between .NET Core and Framework

Core is cross-platform and can produce apps for various devices whilst Framework can only create and run applications on Windows OS.

Different components of .NET Framework

CLR & FCL

When to use .NET Core

Cross-platform requirements, Microservices, High performance, CLI control

When to use Framework

When technologies, libraries, packages are unavailable in .NET Core

CLR

Common Language Runtime (CLR) takes managed code as an input and translates it to the native language and compiles and executes the code.

FCL

Framework Class Library (FCL) a large library of reusable tested code which can be called upon. This may exist of classes, libraries, interfaces and value types.

Managed Code

Code which is executed by a CLR

JIT

Just-In-Time (JIT) exists within the CLR and is responsible for translating and executing the code no matter the .NET language.