Representing bitmap images

A text file is created and encoded using 8-bit ASCII. The file contains 142 characters including spaces. What is the file size (in bytes) of the text file?

• 142 bytes

• 284 bytes

• 71 bytes

• 256 bytes

The file contains 142 characters including spaces. The file is encoded using 16-bit Unicode. What is the file size (in bytes) of the text file?

• 142 bytes

• 284 bytes

• 71 bytes

• 256 bytes

What is the smallest element in an image called?

• Byte

• Pixel

• Bit

• Resolution

What happens when you magnify an image?

• It becomes blurry

• It shows more colors

• It reveals tiny elements called pixels

• It changes shape

What is the size of the enlarged area mentioned in the document?

• 8 × 4 pixels

• 10 × 5 pixels

• 6 × 3 pixels

• 12 × 6 pixels

What is the term used for a way of representing an image as mentioned in the document?

• Vector

• Bitmap

• Raster

• Grid

What does the number 1 represent in the pixel image?

• White

• Black

• Gray

• Red

What does the number 0 represent in the pixel image?

• Black

• Red

• White

• Blue

What is needed to have more colors in your images?

• More pixels

• More bits

• More brightness

• More contrast

What does having 2 bits per pixel allow you to do in an image?

• Use 2 colors

• Use 4 colors

• Use 8 colors

• Use 16 colors