AP CSP Unit 1 Review
What is the 4-bit binary number for the decimal number 10?
1010
How many different digits are used in the Hexadecimal number system?
16
How many different digits are used in the Binary number system?
2
What decimal values, when converted to binary have exactly 3 zeros in them?
20 & 50
How many different numbers can 1 byte hold?
256
What is the largest number you can make in binary and then converted to decimal using only the fingers on your left hand?
31
What decimal value is equivalent to the binary number 101011?
43
How many bits are in a byte?
8
How many different digits are used in the octal number system?
8
The Creative Commons License allows others to distribute, remix, modify, either commercially or non-commercially and is known as the most lenient license.
Attribution license
What is an advantage of lossy compression?
download time is reduced
What is a definition of abstraction?
focusing on what is important and ignoring what is unnecessary
What is meant by 'open source' software?
freely available, constantly upgraded by users. no fee.
What is an advantage of lossless compression of an image file?
image can be reconstructed back to original
What is a disadvantage of lossy compression of an image?
image quality is lost
What type of compression would you use to compress a text file?
lossless
What refers to the compression in which some of the original data is lost?
lossy
What type of compression would you use to compress a video?
lossy
What is a set of rules in order to recreate patterns?
protocol
What is compression?
to reduce the size of data to save space
ASCII stands for what?
American Standard Code of Information Interchange
What is an example of a binary question?
Do you like the color red or purple?
In what ways is driving a car an abstraction?
I don't need to know the details of the braking system to understand that when i step on the brake pedal, the car will slow down.
This Creative Commons License lets others copy, distribute, display, and perform you work and derivative works based upon it, but for non commercial purposes.
Non Commercial License
A student is recording a song on her computer. When the recording is finished, she saves a copy on her computer. The student notices that the saved copy is of lower sound quality than the original recording. What could be a possible explanation for the difference in sound quality?
The song was saved using fewer bits per second than the original song.
What would be a legal use of digital media?
You download a song from iTunes and sync it to the cloud so that it is accessible on all of your devices.
While developing a program, you find a similar project that someone has created and posted online. It contains a number of elements (e.g., images, music, code segments, etc.) that you would like to integrate into your own project. Under what conditions may you reuse these elements in your work?
You may only reuse elements for which the original owner has granted a license to reuse, such as the Creative Commons Share Alike license.
A response that can only be 1 of 2 possible values is what?
binary message
The single unit of information in a computer, typically represented as a 0 or 1.
bit
What does this symbol represent?
creative commons