January 2015 M4.2-R4: INTRODUCTION TO MULTIMEDIA Solved

Multiple Choice

1.1 : D
1.2 : A
1.3 : C
1.4 : A
1.5 : B
1.6 : B

1.7 ; C
1.8 : D
1.9 : B
1.10 : B

True/False

2.1 : T
Explanation : Plasma panels, also called gas discharge displays, are constructed by filling the region between two glass plates with a mixture of gases that usually include neon. A series of vertical conducting ribbons is placed on one glass panel, and a set of horizontal ribbons is built into the other glass panel (fig.below). Firing voltages applied to a pair of horizontal and vertical conductors cause the gas at the intersection of the of two conductors to break down into a glowing plasma of electrons and ions. Picture definition is stored in a refresh buffer, and the firing voltages are applied to refresh the pixel positions ( at the intersections of the conductors) 60 times per second.

2.2 : T
2.3 : F
2.4 : F
2.5 : T
2.6 : F
2.7 : T
2.8 : F
2.9 : T
2.10 : F

Match the Columns

3.1 : F
3.2 : G

3.3 ; I

3.4 : A
3.5 ; M
3.6 : C
3.7 : J
3.8  : D
3.9 : K
3.10 : E

Fill in the Blanks

4.1 : C
4.2 : L
4.3 : A
4.4 : I
4.5 : G
4.6 ; J
4.7 : M
4.8 : H
4.9 ; B
4.10 : F

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