A-LevelComputer ScienceData types and structures9618/31 · May/June 2024 · Q37 Marks
Explain what is meant by non-composite and composite data types.
- (a)Explain what is meant by non-composite and composite data types.[3]
- (b)Write pseudocode statements to declare the record data type FootballClub to hold data about football clubs in a league, to include: • name of team • date team joined the league • main telephone number • name of the manager • number of members • current position in the league.[4]
Mark scheme
Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.
- [3] 3(a) One mark per mark point (Max 2) non-composite data types
- 3(a) MP1 Non-composite data types can both be user-defined or primitive
- 3(a) MP2 Non-composite data types do not refer to other data types in their definition / contain one data type in their definition
- 3(a) MP3 Non-composite data types can be primitive/enumerated/pointer
- 3(a) One mark per mark point (Max 2) composite data types
- 3(a) MP4 Composite data types can be user-defined or primitive
- 3(a) MP5 Composite data types refer to other data types in their definition/contain more than one data type in their definition
- 3(a) MP6 Composite data types can be record/set/class
- [4] 3(b) One mark for TYPE FootballClub and ENDTYPE correct
- 3(b) One mark for every two correct declarations
- 3(b) Example answer
- 3(b) TYPE FootballClub
- 3(b) DECLARE TeamName : STRING
- 3(b) DECLARE DateOfJoining : DATE
- 3(b) DECLARE MainTelephone : STRING
- 3(b) DECLARE ManagerName : STRING
- 3(b) DECLARE NumberOfMembers : INTEGER
- 3(b) DECLARE LeaguePosition : INTEGER
- 3(b) ENDTYPE
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