Topic 6B – Programming fundamentals 73. Pearson Edexcel GCSE (1CP2) Topic 6B The use of data types and casting 74. Pearson Edexcel GCSE (1CP2) Topic 6B The use of variables, constants and assignments 75. Pearson Edexcel GCSE (1CP2) Topic 6B The use of the three basic programming constructs 76. Pearson Edexcel GCSE (1CP2) Topic 6B Using one- and two-dimensional structured data types 77. Pearson Edexcel GCSE (1CP2) Topic 6B The use of basic string manipulation 78. Pearson Edexcel GCSE (1CP2) Topic 6B Formatting and customising string output 79. Pearson Edexcel GCSE (1CP2) Topic 6B User input and display output 80. Pearson Edexcel GCSE (1CP2) Topic 6B The use of basic file handling operations 81. Pearson Edexcel GCSE (1CP2) Topic 6B Data validation 82. Pearson Edexcel GCSE (1CP2) Topic 6B Simple authentication routines 83. Pearson Edexcel GCSE (1CP2) Topic 6B Using arithmetic, comparison and logic operators 84. Pearson Edexcel GCSE (1CP2) Topic 6B How to use pre-existing and user-devised subprograms 85. Pearson Edexcel GCSE (1CP2) Topic 6B The math and time modules 86. Pearson Edexcel GCSE (1CP2) Topic 6B The turtle module 87. Pearson Edexcel GCSE (1CP2) Topic 6B Local and global variables