Often, the programmer’s interface with the operating system is implemented through __________.

Suppose you design a computer called the Big Looper 2000 that will never be used to call procedures and that will automatically jump back to the beginning of memory when it reaches the end. Do you need a program counter? Justify your answer.

What will be an ideal response?

Answer the following questions true (T) or false (F)

1. Random access file organization behaves like a linked list in the way we access its data. 2. In a 2-3 tree, if a node has two key values, then the node has two children. 3. If a B-tree of order 5 contains the key values 20, 40, 50, 60, 80, 90 and 100, and the root contains only the key value 60, then deleting the key 20 will require us to merge the two child nodes.