7-segment display operations - Purpose of blanking

Q.  What is the purpose of blanking (BI) associated with the 7-segment display operations?

a. To turn ON the display
b. To turn OFF the display
c. To pulse modulate the brightness of display
d. To pulse modulate the lightness of display
- Published on 12 Nov 15

a. B & C
b. A & D
c. A & B
d. C & D

ANSWER: B & C

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