Share AP CSP Big Idea 2 - Data
Save to Folder
Put the following numbers in order from least to greatest: binary numbers 1100, 1001, decimal numbers 15, 6
6, 1001(9), 1100(12), 15
What is the smallest piece of information that a computer can store and use for processing?
bit - represented as either a 1 or 0
Bit is shorthand for __________ ___________ and is either 0 or 1.
binary digit
A _________ is 8 bits.
byte
______ is the process of reducing complexity by focusing on the main idea. By hiding details irrelevant to the question at hand and bringing together related and useful details, it reduces complexity and allows one to focus on the ieda.
Abstraction
True or False: The same sequence of bits may represent differenttypesofdataindifferentcontexts
True
Analog data is converted to digital through a process called _________ by measuring values of the analog signal at regular intervals and representing that value with bits.
sampling
Text is represented digitally using a specific string of bits from the ________ chart.
ASCII
Convert the decimal number 15 into binary.
1111
Would 5 bits be enough to represent the decimal number 36?
No, the highest number you can represent with 5 bits is 31. 36 would take 6 bits.
Bits can be used to represent many different things, like colors, sounds, or text. How many different options can be represented using 4 bits?
16, you can represent the numbers 0 - 15, giving you 16 options.
Theuseofdigitaldatatoapproximaterealworld analog data is an example of ___________.
abstraction
What are some examples of analog data?
sound, colors of a painting, the position of a runner in a race.
What would be the outcome of adding 16 plus 18 in a system using only 4 bits.
an overflow error would occur, because 15 is the highest number that can be represented with only 4 bits and 16 + 18 = 34.
Trying to represent a number that is too precise like 26.54278 without having enough bits will result in what kind of error?
round-off error
Convert the binary number 10101 to a decimal number.
21
