Computers and Technology

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?
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
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

1 Answer

  • 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

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