Long description

Figure a: It shows a block divided into two segments, the larger top segment is labeled user space and the smaller bottom space is labeled kernel space. The user space segment consists of a sub-block labeled A B C D E F G H which represents the string to be printed. Another block labeled printed page is shown next to the main block.

Figure b: It shows the same block but the sub-block labeled A B C D E F G H is given inside the kernel space and an arrow labeled next is pointed to the alphabet B. The printed page block consists of the alphabet A.

Figure c: Here the arrow next is pointed to the alphabet C given inside the sub-block. The printed page consists of the alphabet A B printed on it.