Many programmers write computer programs in high-level languages. The programs need to be translated into machine code to be read by the computer. State two types of translator that can be used. Translator 1 Translator 2

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.

1. [2] ∞ Compiler
2. ∞ Interpreter
3. [4] Four from:
4. ∞ Closer to human language/English ...
5. ∞ ... so it is easier/quicker to read/write/understand
6. ∞ ... so it is easier/quicker to debug the program
7. ∞ ... therefore, less likely to make errors
8. ∞ The program can be used on many different platforms ...
9. ∞ ... because it is written in source code
10. ∞ ... because it is compiled into object code
11. ∞ They have built-in functions/libraries ...
12. ∞ ... this saves time when writing the program
13. ∞ Do not need to manipulate memory addresses directly ...
14. ∞ ... therefore, specialist knowledge of this is not required
15. ∞ Only need to learn a single language ...
16. ∞ ... as this can be used on many different computers
17. [3] 1 mark for each correct tick (✔)
18. 10110111, 11001100, 01011100: Machine code (✔)
19. FOR X = 1 TO 10 PRINT X NEXT X: High-level language (✔)
20. INP X STA X LDA Y: Assembly language (✔)