Which type of Interface does the Windows operating system have?

1. GUI
2. CUI
3. Both of these
4. None of these

Which of the following is an example of Single User operating system?

1. Windows 7
2. Windows 8
3. Windows 3.1
4. Windows Vista

UNIX operating system was developed in the year …………… .

1. 1965
2. 1906
3. 1996
4. 1969

Which was the first commercially available phone to run Android?

1. Nokia Lumia
2. iPhone5
3. HTC Dream
4. Samsung Galaxy