| Q.11 | Which of the following refers to means by which an OS or any other program interacts with the user ? |
| A | Program front end |
| B | Programming interface |
| C | User login |
| D | User interface |
| Q.12 | The first graphical user interface was designed by ? |
| A | Apple Inc. |
| B | Microsoft |
| C | Xerox Corporation |
| D | None of these |
| Q.13 | Which process checks to ensure the components of the computer are operating and connected properly ? |
| A | Booting |
| B | Processing |
| C | Saving |
| D | Editing |
| Q.14 | Which of the following is an operating system ? |
| A | Linux |
| B | Debugger |
| C | Mozilla |
| D | Google chrome |
| Q.15 | Linux is a type of……software ? |
| A | Shareware |
| B | Commercial |
| C | Proprietary |
| D | Open source |
| Q.16 | Window software was developed by a company called ? |
| A | Microsoft corporation |
| B | IBM |
| C | Wipro |
| D | Apple |
| Q.17 | Which among the following is not a mobile operating system ? |
| A | Android |
| B | Safari |
| C | Symbian |
| D | iOS |
| Q.18 | Which one of the following file name is invalid in DOS ? |
| A | RIT. bat |
| B | LISTEN.bin |
| C | RLUA.btt |
| D | TALK.bas |
| Q.19 | Which one of the following DIR commands lists a group of files ? |
| A | DIR INVOICE.bas |
| B | DIR RESCUE.bas |
| C | DIR TOOL?.bas |
| D | None of these |
| Q.20 | DOS floppy disk/operating system does not have ? |
| A | A boot record |
| B | A file allocation table |
| C | A root directory |
| D | All of these |