Comparison Between. Net Framework 2.0 and 4.0,. net Framework 2.04.0

Comparison Between. Net Framework 2.0 and 4.0,. net Framework 2.04.0

. Net version	2.0 SP2	4.0
Operating System	Windows 2000 SP4 or above	Windows XP SP3 or above
Installation Package Size	NetFx20SP2_x86.exe 23.8 MB NetFx20SP2_ia64.exe 52.2 MB NetFx20SP2_x64.exe 46.3 MB	Uniform installation package: 48.1 MB
Default installation	XP: No. NET version is installed by default. Windows Vista/7:. NET 3.5 Win 8/8. 1/10:. NET 4.0
New Features		Garbage Collection . NET Framework 4 provides background garbage collection. This function replaces concurrent garbage collection in previous versions and improves performance.
		Dynamic Language Runtime Dynamic Language Runtime (DLR) is a new runtime environment that adds a set of services suitable for dynamic languages to CLR. With the help of DLR, you can more easily develop dynamic languages to run on. NET Framework, and it is easier to add dynamic functions to static typed languages.
		BigInteger and plural
		Memory ing File . NET Framework now supports memory ing files.
		Parallel Computing . NET Framework 4 introduces a new programming model for compiling multi-thread and asynchronous code, which greatly simplifies the work of application and library developers.
New Features (Inherited from 3.0/3.5)		Var implicit type [Var is now a keyword]
		Automatic and implicit types
		Lambda expressions
		Extension Method
		Initiators and anonymous methods
		Parameter default value and name parameter
		Built-in generic delegation
		Standard query operator and LINQ query expression
		WPF The new graphic interface system and API of. NET and vector graphics technology make full use of computer 3D graphics card hardware functions and Direct3D technology. Data Binding is one of its core tasks.
		Thread processing Better Reader/writer lock and enhanced ThreadPool Performance