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2024 Aqa Computer Science Paper 1 Exam
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2024 Aqa Computer Science Paper 1 Exam Rounding - ANSWER-Reducing the number of digits used to represent a number while maintaining a valu2024 Aqa Computer Science Paper 1 Exam Rounding - ANSWER-Reducing the number of digits used to represent a number while maintaining a value that is approximate...

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  • September 22, 2024
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  • 2024/2025
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2024 Aqa Computer
Science Paper 1 Exam




Rounding - ✔✔✔ANSWER-Reducing the number of digits used to represent a
number while maintaining a value that is approximately equivalent.


Selection - ✔✔✔ANSWER-The principle of choosing what action to take based on
certain criteria


Stack - ✔✔✔ANSWER-LIFO data structure


Static data structures - ✔✔✔ANSWER--Inefficient as memory is allocated that
may not be needed

, -Fast access to each element of data as the memory location is fixed when the
program is written
-Memory addresses allocated will be contiguous so quicker to access
-Structures are a fixed size, making them more predictable to work with


Subroutine - ✔✔✔ANSWER-A named block of code designed to carry out a
specific task


Syntax - ✔✔✔ANSWER-the rules of how words are used in a given language


Time complexity efficiency(Best to worst) - ✔✔✔ANSWER-o(1)
o(LogN)
o(N)
o(NlogN)
o(N^2)
O(2^N)
o(n!)


Adjacency list - ✔✔✔ANSWER-Only stores data where there is an edge so
requires less memory
The list has to be parsed to identify whether particular adjacencies exist, which
increases the time to process data
Where there are not many edges, this method would be more suitable


Adjacency Matrix - ✔✔✔ANSWER-Stores a value for every combination of node
adjacencies so requires more memory

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