Chapter 13 - Digital representation

What problem did the creators of Instagram see an opportunity to solve?

• Designing a new camera technology

• Developing a new computer program

• Sharing imagery through mobile phones

• Creating a new social media platform

Who is credited with creating the first digital image using pixels?

• An early computer engineer

• Piper, a photographer

• Mike, co-founder of Instagram

• Russell Kirsch

What are pixels made up of on a screen?

• Tiny dots of little darkness and light

• Tiny dots of little darkness

• Tiny dots of little light of different colors

• Tiny dots of little light of the same color

What does the term 'resolution' refer to in the context of a smartphone screen?

• The number of colors in an image

• The dimensions of the screen in inches

• The number of pixels on a screen

• The density of pixels on a screen

How are RGB values represented in a computer?

• Using the octal number system

• Using the decimal number system

• Using the binary number system

• Using the hexadecimal number system

What is the full form of MPEG?

• Moving Pictures Expert Group

• Motion Pictures Expert Group

• Moving Pixels Expert Group

• Moving Pictures Encode Group

How do digital artists often represent colors?

• Using the decimal number system

• Using the binary number system

• Using the octal number system

• Using the hexadecimal number system

What is the purpose of mapping functions in modifying image colors?

• To convert RGB values to binary

• To change the brightness or tone of the image

• To change the image resolution

• To add more colors to the image

Choose the usage of image compression

• Sharing quickly across network

• Less storage space is occupied

• images will be clear

• Images will be in HD

Which file type does not come under images?

• MP4

• JPEG

• JPG

• PNG