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GCSE Computer Science · key term
Software that translates and executes source code one statement at a time, interpreting the source again whenever the program is run.
Used by OCR
Paper 2
Revise: Compilers and InterpretersCompilers and interpreters both perform translation, but they organise translation and execution differently. This affects how quickly programs run, how programmers investigate errors and how finished software is distributed.
Make direct comparisons: a compiler translates the whole program before execution, whereas an interpreter translates and executes one statement at a time.
Qualify compatibility claims: an executable needs a compatible target system; interpreted source needs a suitable interpreter.
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