(a) Integrated Development Environment (IDE)

• IDE is a toolkit to write and execute a program. The most widely used IDE with C programs is Turbo C IDE.

(b) Editor: used to type and edit the program.

(c) Preprocessor: responsible for performing certain operations before the compiling, like including header files, declaring constants.

It always begins with '#' sign.

For eg: #include$\lt$stdio.h$>$

#define pi 3.14;

(also called as preprocessor directives)

(d) Compiler: Converts C program to machine language. As the processor cannot understand the C language, we need to convert it into machine understandable language. i.e. Machine language.

(e) Cross-compiler: Type of compiler capable of creating executable code for a platform other than the one on which compiler is running.

For eg: a compiler that runs on windows 7 PC but generates code that runs an Android Smartphone is a cross compiler.

(f) Linker: responsible for linking the different functions in a program and to provide links to the libraries needed for an executable program.

(takes 1 or more files and combines them into a single executable file)

(g) Loader: The binary file/executable file generated by compiler is loaded by the loader for execution.

(h) In circuit emulator: ICE is a h/w device used to debug the software of an embedded system. It operates by using a processor with the additional ability to support debugging operations as well as to carry out the main function of the system.