Understanding Digital Imaging and Instagram

Who co-founded Instagram?

• Mike

• John

• Sarah

• David

What year was the first digital image created?

• 1957

• 1964

• 1972

• 1980

What does RGB stand for?

• Rapid Graphic Bytes

• Red, Gray, Black

• None of the above

• Red, Green, Blue

What is the maximum value for each color in RGB?

• 255

• 250

• 100

• 300

How many bits are used to represent one color channel in RGB?

• 8 bits

• 16 bits

• 10 bits

• 12 bits

What is the resolution mentioned as common during the speaker's high school time?

• 1280 by 720 pixels

• 1024 by 768 pixels

• 640 by 480 pixels

• 800 by 600 pixels

What does a higher pixel density in smartphones help achieve?

• Sharper images

• Lower energy consumption

• Faster processing speed

• Lesser screen brightness

How are the RGB values stored in a file?

• Individually

• In pairs

• In triplets

• Not stored

What is the binary representation of the maximum intensity of a color in RGB?

• 11111111

• 00000000

• 10101010

• 11001100

What hexadecimal digits represent the color turquoise?

• FEDCBA

• 123456

• ABCDEF

• 40E0D0