Slide 1

Why different memory segments? (Picture 7)

•int array[1000000]; // 4Mb

Program size on disk is 32Kb

array is put into .BSS segment that contains only information about its size

•int array[1000000] = { 12 };

Program size on disk 3.84Mb

array is put into .DATA segment and contains { 12, 0, 0, 0, 0 … }