5.8.1 Digital Information Flashcard

Front

Which number system is used to store information digitally in a computer? Options: Decimal (base 10), Binary (base 2), Octal (base 8), Hexadecimal (base 16)

Back

Binary (base 2)

Front

How many different digits are used in the Hexadecimal number system?

Back

16

Front

What is the decimal value of 1101?

Back

13

Front

How many different values can be represented using 4 bits?

Back

16 different values

Front

What is the highest possible score the ESPN website could display using 8-bit unsigned integers? Options: 256₁₀, 255₁₀, 11111111₁₀, 128₁₀

Back

255₁₀

Front

A news website uses 32-bit integers to count the number of times an article has been viewed. The website is becoming more popular, and expects some of the articles to exceed the number of views that can be represented with 32 bits. In anticipation of this, the website is planning to change to 64-bit integers for the view counter. Which of the following best describes the result of using 64-bit integers instead of 32-bit integers?

Back

2³² times as many values can be represented.

Front

According to the ASCII character encoding, which character is represented by the hexadecimal (base 16) number 6E₁₆?

Back

n

Front

Which ASCII character is represented by the decimal (base 10) number 120?

Back

x

Front

Which of the following pixels has a color value of #00ff00 (expressed in hexadecimal)?
Options: White Pixel, Blue Pixel, Red Pixel, Green Pixel

Back

Front

If black is 0 and white is 1, which binary code creates the smiley face pixel image below? Options: 00100100, 00000000, 01000010, 00111100, 00000000, 11011011, 11111111, 10111101, 11000011, 11111111, 00110000, 01010000, 00111000, 11111111, 00000000, 001010101, 10101010, 01010101, 10101010, 01010101

Back

00100100
00000000
01000010
00111100
00000000