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Computer Science

GCSE · OCR

QuestionsFlashcards

Identifying & Preventing Threats to Computer Systems & Networks
- Forms of Attack on a Network
  8
- Methods of Preventing a Network Attack
  10

Operating Systems & Utility Software
- The Purpose & Functionality of Operating Systems
  7
- The Purpose & Functionality of Utility Software
  6

Ethical, Legal, Cultural & Environmental Impact
- Impacts of Digital Technology on Wider Society
  7
- Legislation in Computer Science
  8

Boolean Logic Diagrams
- Boolean Logic Diagrams
  9
- Combining Boolean Operators
  7

Levels of Programming Languages Flashcards

All 5 cards in this deck

What is a high-level programming language?: A programming language written in a form close to human language, which must be translated into machine code by a compiler or interpreter before it can run.
What is a low-level programming language?: Machine code or assembly language — written for one specific type of processor and giving direct control of the hardware and memory.
Give two reasons why some programs are written in a low-level language.: Direct control of hardware/memory; faster execution time.
e.g. also accepted: machine code does not need translating, code can be optimised / use less memory.
Give two reasons why a programmer would choose a high-level language.: It is easier and quicker to write, read and maintain; it is portable, so the same source code can be translated to run on different types of computer.
True or false? Machine code must be translated before a computer can run it.: False. Machine code does not need to be translated / compiled / interpreted — the processor executes it directly.