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Definition
collection of statements (instructions) for program to run - usually from start to end (unless encounters error)
Written using human-readable programming language. Then converted to machine code to run |
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Definition
| instruction within a program for it to perform a specific action |
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Definition
| correct order specific to each language so that the source code can be understood. Sort of like grammar |
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Term
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Definition
associate a value with a name so that you can use it
global and local (inside functions) |
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Definition
| explanatory notes - not part of code. help others (and the author) understand it |
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Term
| Give some examples of situations where the data type of a variable influences how it can be used. |
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Definition
- maths on integers/floats makes sense, not on string of text
-different languages follow different rules whether data types have to be coerced or can be done automatically
weakly typed - implicit)
strongly typed (explicit)
eg concatenating strings and numbers |
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Term
| Describe the concept of "control structures", and give examples of selection and iteration statements. |
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Definition
selection statements and loop or iteration statements. Code runs based on conditions rather than start to finish.
Selection statements run on Boolean expression or condition being True
counter-controlled or condition-controlled loops (number of iterations specified or loop while condition is true) |
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Term
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Definition
| An expression is essentially anything in a programming language that can be “evaluated” into some kind of result, |
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