Why is S9(4) COMP needed despite knowing that Comp-3 would utilise les

1.	Why is S9(4) COMP needed despite knowing that Comp-3 would utilise less space?
Answer» S9(4) COMP represents that the item is a small integer which MEANS two words of 1 byte each can occupy a total of 2 bytes. In S9(4) COMP-3, ONE word is equal to half a byte which means 4 words can occupy 2 bytes and ADDITIONALLY, the sign occupies another half byte which results in a maximum of 3 bytes usage. More can be accommodated in S9(4) COMP when COMPARES to COMP-3.

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