Computer Science Principles Unit 1 Review

Front

What's the relationship between a byte and a bit?

Back

8 bits in a byte

Front

Computers store information in bits, or binary digits. Which of the following could be represented in bits? Numbers, Text, Images, Sounds, All of the above

Back

All of the above

Front

Creating simplified representations of something more complex is called:

Back

Abstraction

Front

What is 1001 in decimal form?

Back

9

Front

What is 15 in binary?

Back

1111

Front

How many bits do you need to make 21 in binary?

Back

5

Front

Which is true about 3 bits? Options: The highest number you can reach is 8, giving you 9 numbers (0-8), The highest number you can reach is 7, giving you 8 numbers (0-7), The highest number you can reach is 8, giving you 8 numbers (0-7), The highest number you can reach is 7, giving you 7 numbers (0-7)

Back

The highest number you can reach is 7, giving you 8 numbers (0-7)

Front

Which is true about analog vs digital?

Back

Analog is data with values that change continuously, or smoothly, over time while digital has a finite set of possible values.

Front

Compression is a process used to reduce the number of bits necessary to represent something. True or False?

Back

True

Front

What is true about copyright laws? Options: If you use someone's stuff and don't cite it, you are violating copyright laws; If someone has a Creative Commons license, then you are able to use their stuff freely (as long as it follows what is written in the license); Open source means you are free to use it without worrying about copyright laws; All of the above

Back

All of the above