8.0 Module Overview: Programming Concepts and File Handling

Use this module to build one skill at a time, then apply it in a different situation. Read each worked example, explain its steps and attempt the exercises without copying the example. The mixed review is for retrieval now and after a delay.

Lessons

• Variables, Data Types & OUTPUT in Cambridge Pseudocode
• Constants, Scope & Value Protection
• User Input & Standard Arithmetic Operations
• Integer Division: DIV (Quotient) & MOD (Remainder)
• Library Routines: ROUND and RANDOM
• Selection & Decision Making (IF ... THEN ... ELSE)
• Multi-Way Selection (CASE OF ... OTHERWISE ... ENDCASE)
• Count-Controlled Loops (FOR ... TO ... NEXT)
• Post-Condition Loops (REPEAT ... UNTIL)
• Pre-Condition Loops (WHILE ... DO ... ENDWHILE)
• Nested Loops & Multidimensional Iteration
• String Handling Functions (LENGTH, SUBSTRING, UCASE, LCASE)
• 1D Arrays & 1-Based Indexing
• 2D Arrays & Matrix Grid Iteration
• Procedures & Parameter Passing
• Functions & Return Values
• Sequential File Handling (OPENFILE, READFILE, WRITEFILE)
• Mixed Practice: Programming
• Independent Scenario: Club Results

Study and feedback

Reading theory is open. Interactive access depends on your account and module access; the AI Tutor requires eligible All-Access membership. Structured checks provide feedback on specific answers. Written explanations and diagrams need comparison with the worked guidance and, where possible, a teacher's feedback. Passing a check is not a prediction of an exam grade.

Programming before algorithms

Beginners should study module 8 through arrays before attempting module 7's search/sort programs. The module navigation places programming before algorithm practice; syllabus numbers remain available for reference. Revisit subroutines, files and the independent scenarios once their prerequisites are secure.