IGCSE Computer Science Paper 2 Word Scramble: 7b Decomposition and Sub-systems (Modules 123–134)
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Word scramble
Unscramble the letters and write each key term on the line.
1
TUIEUNSBOR OBYSLM
A rectangle with double side lines. It stands for a call to a subroutine whose steps are drawn in a separate flowchart, which keeps the main flowchart short.
2
NMAI TWHOFRALC
A flowchart that calls each sub-problem from the structure diagram with a subroutine symbol. Each sub-problem then gets its own separate flowchart.
3
OERWDYKS NI ASALIPTC
Cambridge pseudocode writes keywords like INPUT, OUTPUT and IF in capital letters, puts one statement on each line, and indents the statements inside IF and loops.
4
OLTTA ← 0
The ← symbol is assignment: it stores the value on its right in the variable on its left. ______ sets Total to 0. Total ← Total + Score adds Score to Total.
5
NITUP MNEA
INPUT reads a value from the user into the variable Name. OUTPUT displays a value or message on screen, such as OUTPUT "Hello" or OUTPUT Name.
6
FI HETN LSEE FIDEN
Runs the indented lines after THEN if the condition is true, otherwise runs the ELSE lines. ENDIF closes the construct and sits at the same indent as IF. ELSE is optional.
7
ROF UNTCO ← 1 OT 01
A count-controlled loop that repeats the indented statements a fixed number of times, with Count going from 1 to 10. NEXT Count closes the loop and moves Count up by 1.
8
LHEWI ... OD ... NWELIDHE
A loop that tests its condition before each repeat, so it may run 0 times. REPEAT ... UNTIL runs the body first and tests after, so it always runs at least once.
Answer Key
IGCSE Computer Science Paper 2 · Modules 123–134
1TUIEUNSBOR OBYSLM → Subroutine symbol — A rectangle with double side lines. It stands for a call to a subroutine whose steps are drawn in a separate flowchart, which keeps the main flowchart short.
2NMAI TWHOFRALC → main flowchart — A flowchart that calls each sub-problem from the structure diagram with a subroutine symbol. Each sub-problem then gets its own separate flowchart.
3OERWDYKS NI ASALIPTC → KEYWORDS IN CAPITALS — Cambridge pseudocode writes keywords like INPUT, OUTPUT and IF in capital letters, puts one statement on each line, and indents the statements inside IF and loops.
4OLTTA ← 0 → Total ← 0 — The ← symbol is assignment: it stores the value on its right in the variable on its left. Total ← 0 sets Total to 0. Total ← Total + Score adds Score to Total.
5NITUP MNEA → INPUT Name — INPUT reads a value from the user into the variable Name. OUTPUT displays a value or message on screen, such as OUTPUT "Hello" or OUTPUT Name.
6FI HETN LSEE FIDEN → IF THEN ELSE ENDIF — Runs the indented lines after THEN if the condition is true, otherwise runs the ELSE lines. ENDIF closes the construct and sits at the same indent as IF. ELSE is optional.
7ROF UNTCO ← 1 OT 01 → FOR Count ← 1 TO 10 — A count-controlled loop that repeats the indented statements a fixed number of times, with Count going from 1 to 10. NEXT Count closes the loop and moves Count up by 1.
8LHEWI ... OD ... NWELIDHE → WHILE ... DO ... ENDWHILE — A loop that tests its condition before each repeat, so it may run 0 times. REPEAT ... UNTIL runs the body first and tests after, so it always runs at least once.