O-LevelComputer ScienceData RepresentationOct/Nov 2025Paper 2 Q78 Marks
An algorithm has been written in pseudocode to: • input a whole number between 1 and 255 inclusive • convert the input to an 8-bit binary number • store each bit of the binary number in an array. For example, if the denary number 127 was input, the binary number 01111111 would be stored in the array. 01 DECLARE BinaryArray : ARRAY[1:8] OF INTEGER 02 DECLARE DenaryNumber : CHAR 03 OUTPUT "Please enter a whole number between 1 and 255 inclusive " 04 INPUT DenaryNumber 05 FOR Count ← 7 TO 1 STEP -1 06 BinaryArray[Count] ← MOD(DenaryNumber,3) 07 DenaryNumber ← DIV(DenaryNumber,2) 08 NEXT Count
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