CodeHS - Unit 4 - Digital Information

Front

What is the number base of the binary number system?

Back

2

Front

In the binary value 100₂, what is the place value of the 1?

Back

4s place

Front

What is the value of 13₁₀ in binary?

Back

1101₂

Front

How many possible values can be created with only 2 bits?

Back

4

Front

How many bits are used to encode a character according to the ASCII encoding scheme?

Back

8 bits

Front

What is a pixel?

Back

A single tiny dot, or square, of color in a digital image.

Front

What is the value of 9F₁₆ in binary?

Back

1001 1111₂

Front

What is the value of C₁₆ in decimal?

Back

12₁₀

Front

What are the 3 color channels that make up a pixel according to the RGB color scheme?

Back

Red, Green, and Blue

Front

What is the range of values (expressed in decimal) that each color channel can have? Options: 1₁₀ - 256₁₀, 0₁₀ - 255₁₀, -128₁₀ - 127₁₀, 0₁₀ - 127₁₀

Back

0₁₀ - 255₁₀