Evaluation of semester2

Multiple Choice
1.a
2.e
3.a
4.a 
5.b

6.c

7.a

8.c

9.

10.a
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.c
24.a
25.d
26.d
27.a
28.a
29.b
30.a


essay
1. explain how to change a dekstop background.
2.whats is the use of screen saver.
3.name and explain briefly the device that can enhance the picture qualty.