IGCSE Computer Science Paper 2 Word Scramble: 7b Decomposition and Sub-systems and 7c Pseudocode and Flowcharts (Modules 136–145)
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Word scramble
Unscramble the letters and write each key term on the line.
1
LALC
Runs a procedure. A main program is a short list of ______ lines, one per sub-problem from the structure diagram, in the right order, with no detail inside it.
2
UOEDCRPER
Each box in a structure diagram becomes a ______ or FUNCTION named after the box. A box with sub-boxes uses CALL statements to run them. Check that every box has code.
3
LULA-MKFR WAENRS
Uses key terms (sub-system, decomposition, abstraction, input, process, output, storage) correctly and gives a reason for each point, for example by using the word 'because'.
4
DUOCESEPDO
Cambridge's fixed format for planning an algorithm before it is written as program code. Paper 2 answers must use it, except the 15-mark question, which allows Python, VB or Java.
5
PARSFEUYEMNRBLO
An identifier in Pascal case: a variable or constant name using only letters and digits, starting with a capital, with each word capitalised and no spaces or underscores.
6
4 ESCAPS
Indent every statement inside a FOR, WHILE or REPEAT loop by ______. Nested loops add 4 more; wrapped continuation lines use 2. An unindented loop body is a presentation error.
Answer Key
IGCSE Computer Science Paper 2 · Modules 136–145
1LALC → CALL — Runs a procedure. A main program is a short list of CALL lines, one per sub-problem from the structure diagram, in the right order, with no detail inside it.
2UOEDCRPER → PROCEDURE — Each box in a structure diagram becomes a PROCEDURE or FUNCTION named after the box. A box with sub-boxes uses CALL statements to run them. Check that every box has code.
3LULA-MKFR WAENRS → full-mark answer — Uses key terms (sub-system, decomposition, abstraction, input, process, output, storage) correctly and gives a reason for each point, for example by using the word 'because'.
4DUOCESEPDO → pseudocode — Cambridge's fixed format for planning an algorithm before it is written as program code. Paper 2 answers must use it, except the 15-mark question, which allows Python, VB or Java.
5PARSFEUYEMNRBLO → NumberOfPlayers — An identifier in Pascal case: a variable or constant name using only letters and digits, starting with a capital, with each word capitalised and no spaces or underscores.
64 ESCAPS → 4 spaces — Indent every statement inside a FOR, WHILE or REPEAT loop by 4 spaces. Nested loops add 4 more; wrapped continuation lines use 2. An unindented loop body is a presentation error.