Digital Information Flashcard

Front

Which number system is used to store information digitally in a computer?

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 1101₂?

Back

13₁₀

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

Which of the following best describes the result of using 64-bit integers instead of 32-bit integers? 2 times as many values can be represented, 32 times as many values can be represented, 2³² times as many values can be represented, 32² times as many values can be represented

Back

2³² times as many values can be represented

Front

Which ASCII character is represented by the decimal (base 10) number 72?

Back

H

Front

Which of the following is a true statement about data compression? Data compression is only useful for files being transmitted over the Internet., Regardless of the compression technique being used, once a data file is compressed, it cannot be restored back to its original state., Sending a compressed version of a file ensures that no one can read the contents of the file except for the intended recipient., There are trade-offs involved in choosing a compression technique for storing and transmitting data.

Back

There are trade-offs involved in choosing a compression technique for storing and transmitting data.

Front

A student is transferring photos from her camera to her computer. The student notices that the saved photos on her computer are lower quality than the original raw photo on her camera. Which of the following could be a possible explanation for the difference in image quality? The saved image files were compressed with a lossy compression technique.

Back

The saved image files were compressed with a lossy compression technique.

Front

Consider the following numbers:
The decimal value 10₁₀
The binary value 1001₂
Hexadecimal value C₁₆
Which of the following lists the numbers in order from least to greatest?

Back

1001₂, 10₁₀, C₁₆