AQA 4.6.3 Types of program translator

What is the role of an assembler?

• Translate assembly language into machine code
• Translate high-level languages into machine code
• Execute machine code on different processors
• Check for errors line-by-line before translating

What is the role of a compiler?

• Translate high-level languages into machine code
• Translate assembly language into machine code
• Execute machine code on different processors
• Check for errors line-by-line before translating

What is the role of an interpreter?

• Translate high-level languages into machine code
• Execute machine code on different processors
• Translate assembly language into machine code
• Check for errors line-by-line before translating

What is the difference between compilation and interpretation?

• Compilation offers little protection of source code, while interpretation protects the source code from extraction
• Compilation translates assembly language into machine code, while interpretation translates high-level languages into machine code
• Compilation translates high-level languages into machine code, while interpretation translates assembly language into machine code
• Compilation checks for errors line-by-line before translating, while interpretation translates immediately

In which situations would an assembler be appropriate?

• When executing machine code on different processors
• When checking for errors line-by-line before translating
• When translating assembly language into machine code
• When translating high-level languages into machine code

In which situations would a compiler be appropriate?

• When checking for errors line-by-line before translating
• When translating assembly language into machine code
• When executing machine code on different processors
• When translating high-level languages into machine code

In which situations would an interpreter be appropriate?

• When checking for errors line-by-line before translating
• When translating high-level languages into machine code
• When executing machine code on different processors
• When translating assembly language into machine code

Why is an intermediate language such as bytecode produced as the final output by some compilers?

• To translate high-level code into machine code
• To check for errors line-by-line before translating
• To execute machine code on different processors
• To allow for platform independence

How is an intermediate language such as bytecode subsequently used?

• It is translated into machine code and executed on different processors
• It is used to allow for platform independence
• It is used to check for errors line-by-line before translating
• It is used to execute machine code on different processors

What is the difference between source code and object code?

• Source code is the input to an interpreter, while object code is the output
• Source code is the output of an interpreter, while object code is the input
• Source code is the output of a translator, while object code is the input
• Source code is the input to a translator, while object code is the output