A bitmap picture can be represented by hexadecimal numbers. Each twodigit hexadecimal number represents a row. To convert a number into a picture, one converts
Computers and Technology
MichelleDong
Question
A bitmap picture can be represented by hexadecimal numbers. Each twodigit 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?
1 Answer

1. User Answers tonb
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