GCSE > Computer Science > Pearson IGCSE > GCSE Computer Science > ALGORITHMS AND PROGRAMMING: Algorithm representation > Pseudocode
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COMPUTER SYSTEMS: Encoding and compression

COMPUTER SYSTEMS: Network topologies

COMPUTER SYSTEMS: Wired and wireless networks, protocols, and layers

COMPUTER SYSTEMS: Threats to computer systems and networks

COMPUTER SYSTEMS: Operating systems and utility software

ALGORITHMS AND PROGRAMMING: Types of data

ALGORITHMS AND PROGRAMMING: Producing robust programs

ALGORITHMS AND PROGRAMMING: Designing, creating, and refining algorithms

ALGORITHMS AND PROGRAMMING: Artificial Intelligence (AI)

  • This is a way to write algorithms in structured English.
  • It is not actual code – instead it is designed to be easy to read while providing a basic understanding of an algorithm’s function.
  • Pseudocode is used to plan and design algorithms before writing actual code as it helps programmers focus on logic without worrying about syntax errors.
  • Commonly used logical structures in pseudocode include: IF, ELSE, WHILE, FOR, INPUT, OUTPUT, etc.

INPUT number

IF number > 0 THEN

OUTPUT “Positive”

ELSE

OUTPUT “Not positive”

ENDIF

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