Translators

Question 1

Converting source code to machine code.

Answer 1

Translation

Question 2

Why is translation needed?

Answer 2

Source code is easy to understand for us, however computers need it converted into pure binary to understand and execute. (machine code)

Question 3

Types of translators:

Answer 3

• Assemblers
• Interpreters
• Compilers

Question 4

Translators that translate source code

Answer 4

Interpreters and compilers

Question 5

translates assembly code

Answer 5

assemblers

Question 6

Won’t run unless all errors in the code are corrected

Answer 6

Compiler

Question 7

Runs program partially if an error is present in the code

Answer 7

Interpreters

Question 8

Takes one line of source code, translates it and executes it

Answer 8

interpreter

Question 9

takes entire source code and translates it

Answer 9

compiler

Question 10

Assembler description

Answer 10

• Translates assembly language into machine code.
• Takes basic commands and operators from assembly code and converts them into binary code that can be recognised by a specific type of processor
• The translation process: one-to-one from assembly code to machine code

Question 11

Advantages of an assembler

Answer 11

• Programs written in machine language can be replaced with mnemonics, which are easier to remember
• Memory-efficient
• Speed of execution is faster
• Hardware-oriented
• Requires fewer instructions to accomplish the same result

Question 12

Disadvantages of an assembler

Answer 12

•Long programs written in such languages cannot be executed on small computers
• It takes lot of time to code or write the program, as it is more complex in nature
• Difficult to remember the syntax
• Lack of portability between computers of different makes

Question 13

• Translates source code from high-level languages into object code and then machine code to be processed by the CPU
• The whole program is translated into machine code before it is run

Answer 13

Compiler description

Question 14

Advantages of a compiler

Answer 14

• No need for translated at run-time
• Speed if execution is faster
• Code is usually optimised
• Original source code is kept secret

Question 15

Disadvantages of a compiler

Answer 15

• Source code is easier to write in a high-level language, but the program will not run with syntax errors, which can make it more difficult to write the code
• Code needs to be recompiled when the code is changed
• Designed for a specific type of processor

Question 16

• Translates source code from high-level languages into machine code, ready to be processed by the CPU
• The program is translated line by line as the program is running

Answer 16

Interpreter description

Question 17

Advantages of an interpreter translator

Answer 17

• Easy to write source code, as the program will always run, stopping when it finds a syntax error
• Code does not need to be recompiled when code is changed
• It is easy to try out commands when the program has paused after finding an error - this makes interpreted languages very easy for beginner programmers to learn to write code

Question 18

Disadvantages of an interpreter translator

Answer 18

• Translation software is required at run-time
• Speed of execution is slower
• Code is not optimised
• Source code is required