Question

A bitmap picture can be represented by hexadecimal numbers. Each two-digit hexadecimal number represents a row. To convert a number into a picture, one converts the hexadecimal number into binary, then shades the bitmap according to the binary numbers. Each row represents one byte, that is, eight bits. A zero is a blank square, a one is a shaded square. Consider the bitmap picture below: Which of the following matches the bitmap above?

Answer 1

Answer:

answer C. 00 38 44 etc.

Explanation:

Divide the bitmap in horizontal strips of 4 pixels (let's call them nibbles).

Use the following table to map each nibble to a hexadecimal number where 0 =white, 1=black:

0000 = 0

0001 = 1

0010 = 2

0011 = 3

0100 = 4

0101 = 5

0110 = 6

0111 = 7

1000 = 8

1001 = 9

1010 = A

1011 = B

1100 = C

1101 = D

1110 = E

1111 = F