Data and processes in computing

This free course, Data and processes in computing, will help you to understand the forms of data that are handled by software and look at the various processes that can be applied to the data. These ideas are demonstrated through the use of a supermarket till and illustrate how simple data sets can be manipulated.

• Introduction
• Learning outcomes
• Key ideas
• 1 At the supermarket
• 1 At the supermarket
• 1.1 Number sequences
• Objectives for Section 1
• Exercises on Section 1
• 2 Forms of data
• 2 Forms of data
• 2.1 Numbers
• 2.2 Characters
• 2.3 Truth values
• 2.4 Sets
• 2.5 Sequences
• 2.6 Associations: tuples and Cartesian products
• Objectives for Section 2
• Exercises on Section 2
• 3 Combining forms of data
• 3 Combining forms of data
• Structuring data
• 3.1 Sets of sets
• 3.2 Combining data structures
• 3.3 Mixing different forms of data: disjoint union of sets
• 3.4 Representing data in applications
• Objectives for Section 3
• Exercises on Section 3
• 4 Processes
• 4 Processes
• Processes that can be applied to data
• 4.1 Functions
• 4.2 Functions defined through cases
• 4.3 Character code functions
• 4.4 Functions returning true or false
• Objectives for Section 4
• Exercises on Section 4
• 5 Operations and comparisons
• 5 Operations and comparisons
• Seeing processes as functions
• 5.1 Arithmetic operations
• 5.2 Operations on Boolean values
• 5.3 Comparison functions
• 5.4 Expressions
• Objectives for Section 5
• Exercises on Section 5
• Conclusion
• Acknowledgements