Hi friend,

Points to be remember :


API

*) API Stands for "Application Program Interface"

*) It is sometimes referred to as an "Application Programming Interface."

*) It is a set of commands, functions, and protocols.

*) It build software for a specific operating system.

*) It allows programmers to use predefined functions.

*) It interact with the operating system.

Assemblies


*) It is a logical unit of code.

*) It stored as EXEs or DLLs while JAR files are stored in the ZIP file format.

*) It can contain one or more files.

*) It gives Metadata about the classes.

*) The files can include any file types like image files, text files etc.along with DLLs or EXEs.

*) If you compile source code by default the exe/dll generated is actually an assembly.

*) The security permissions, code deployment,and versioning are done at the assembly level.

*) Every assembly file contains information about itself. This information is called as Assembly Manifest.

Thanks

vineet