Question 1: What is the primary way computers store color information in digital images?

Answer: Computers store color information using binary codes that represent different colors, typically using combinations of red, green, and blue values (RGB).

Question 2: Describe how a simple black and white image can be stored in a computer using binary.

Answer: A black and white image can be stored using 1 bit per pixel, where 0 represents black and 1 represents white.

Question 3: Explain what is meant by the term 'resolution' in digital images.

Answer: Resolution refers to the number of pixels in an image, typically given as width x height, affecting the image's detail and clarity.

Question 4: A digital image uses 8 bits to store each pixel's color. How many different colors can this image display?

Answer: It can display 2^8 = 256 different colors.

Question 5: Complete the truth table for an AND gate with inputs A and B, and output C.

Answer: [{"A":0,"B":0,"C":0},{"A":0,"B":1,"C":0},{"A":1,"B":0,"C":0},{"A":1,"B":1,"C":1}]

Question 6: Draw the logic circuit for an OR gate. Label the inputs and output.

Answer: A correct sketch would show a standard OR gate symbol with two input lines entering the left side, labeled A and B, and one output line on the right labeled C. The shape should be curved with a pointed end on the right.

Question 7: Sketch a design for a simple digital image that contains only three shades: black, grey, and white. Use the space below.

Answer: A sketch should show a pattern or gradient with three distinct shades, labeled accordingly, emphasizing the different levels of grey from black to white.

Question 8: If each pixel in an image is stored with 16 bits, how many different colors can the image display?

Answer: It can display 2^16 = 65,536 different colors.

Question 9: Explain why increasing the number of bits per pixel in an image increases the number of possible colors.

Answer: Because more bits mean more binary combinations, allowing each pixel to represent a larger range of colors, thus increasing the total number of available colors.

Question 10: Describe what a pixel is in the context of digital images.

Answer: A pixel is the smallest individual element of a digital image, representing a tiny piece of the picture's color or shade.

Question 11: Draw a simple diagram illustrating how binary data might be used to represent a pixel's color in a digital image.

Answer: A correct diagram would show a small box labeled 'Pixel', with an arrow pointing to a binary number (such as 10101011) that represents its color in digital form.