Which of the following data structures is used in implementing recursive calls ?
1). Stack
2). Binary Tree
3). Hash Table
4). Queue
1. Text in a column is generally aligned____
3. Pie charts are typically created by using which of the following?
4. Which is the first search engine in internet
6. Which of the following is not an manufacturer of Hard Disk drives
7. To read a CD-ROM disc you need a
8. To change the name of an Excel worksheet