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15 BEST Music (Audio) Visualizer Software and App in 2021
Music visualizers are software that can generate animated imagery that follows loudness, frequency spectrum,...
A compiler is a computer program that transforms code written in a high-level programming language into the machine code. It is a program which translates the human-readable code to a language a computer processor understands (binary 1 and 0 bits). The computer processes the machine code to perform the corresponding tasks.
A compiler should comply with the syntax rule of that programming language in which it is written. However, the compiler is only a program and cannot fix errors found in that program. So, if you make a mistake, you need to make changes in the syntax of your program. Otherwise, it will not compile.
An interpreter is a computer program, which coverts each high-level program statement into the machine code. This includes source code, pre-compiled code, and scripts. Both compiler and interpreters do the same job which is converting higher level programming language to machine code. However, a compiler will convert the code into machine code (create an exe) before program run. Interpreters convert code into machine code when the program is run.
Basis of difference | Compiler | Interpreter |
---|---|---|
Programming Steps |
|
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Advantage | The program code is already translated into machine code. Thus, it code execution time is less. | Interpreters are easier to use, especially for beginners. |
Disadvantage | You can't change the program without going back to the source code. | Interpreted programs can run on computers that have the corresponding interpreter. |
Machine code | Store machine language as machine code on the disk | Not saving machine code at all. |
Running time | Compiled code run faster | Interpreted code run slower |
Model | It is based on language translationlinking-loading model. | It is based on Interpretation Method. |
Program generation | Generates output program (in the form of exe) which can be run independently from the original program. | Do not generate output program. So they evaluate the source program at every time during execution. |
Execution | Program execution is separate from the compilation. It performed only after the entire output program is compiled. | Program Execution is a part ofInterpretation process, so it is performed line by line. |
Memory requirement | Target program executeindependently and do not require the compiler in the memory. | The interpreter exists in the memory during interpretation. |
Best suited for | Bounded to the specific target machine and cannot be ported. C and C++ are a most popular a programming language which uses compilation model. | For web environments, where load times are important. Due to all the exhaustive analysis is done, compiles take relatively larger time to compile even small code that may not be run multiple times. In such cases, interpreters are better. |
Code Optimization | The compiler sees the entire code upfront. Hence, they perform lots of optimizations that make code run faster | Interpreters see code line by line, and thus optimizations are not as robust as compilers |
Dynamic Typing | Difficult to implement as compilers cannot predict what happens at turn time. | Interpreted languages support Dynamic Typing |
Usage | It is best suited for the Production Environment | It is best suited for the program and developmentenvironment. |
Error execution | Compiler displays all errors and warning at the compilation time. Therefore, you can't run the program without fixing errors | The interpreter reads a single statement and shows the error if any. You must correct the error to interpret next line. |
Input | It takes an entire program | It takes a single line of code. |
Output | Compliers generates intermediate machnie code. | Interpreter never generate any intermediate machnie code. |
Errors | Display all errors after, compilation, all at the same time. | Displays all errors of each line one by one. |
Pertaining Programming languages | C,C++,C#, Scala, Java all use complier. | PHP, Perl, Ruby uses an interpreter. |
High-level languages, like C, C++, JAVA, etc., are very near to English. It makes programming process easy. However, it must be translated into machine language before execution. This translation process is either conducted by either a compiler or an interpreter. Also known as source code.
Machine languages are very close to the hardware. Every computer has its machine language. A machine language programs are made up of series of binary pattern. (Eg. 110110) It represents the simple operations which should be performed by the computer. Machine language programs are executable so that they can be run directly.
On compilation of source code, the machine code generated for different processors like Intel, AMD, an ARM is different. tTo make code portable, the source code is first converted to Object Code. It is an intermediary code (similar to machine code) that no processor will understand. At run time, the object code is converted to the machine code of the underlying platform.
To exploit relative advantages of compilers are interpreters some programming language like Java are both compiled and interpreted. The Java code itself is compiled into Object Code. At run time, the JVM interprets the Object code into machine code of the target computer.
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