Binary
A computer represents data as?
Bits
enables content creators to freely distribute their otherwise copyrighted work.
Creative Commons
Data with values that change continuously, or smoothly, over time. Some examples of analog data include music, colors of a painting, or position of a sprinter during a race.
Analog Data
A process for reducing the number of bits needed to represent something in which some information is lost or thrown away. This process is not reversible.
Lossy Compression
With a fixed number of bits some numbers are too large to represent in a computer which will lead to...
Overflow error
How many bits is in 1 byte?
8
Copyright, patents, trade secrets, recipes, inventions are examples of
Intellectual Property
Data that changes discretely through a finite set of possible values
Digital Data
A process for reducing the number of bits needed to represent something without losing any information. This process is reversible.
Your computer uses 4 bits to represent decimal numbers (0, 1, 2, 3 and so on) in binary. What is the SMALLEST number for which an overflow error occur?
16
Convert the binary (base-2) number 1001 to decimal (base-10)
9
A work or invention that is the result of creativity, such as a piece of writing or a design, to which one has rights and for which one may apply for a patent, copyright, trademark, etc.
Intellectual Property
A process for creating a digital representation of analog data by measuring the analog data at regular intervals called samples.
Sampling
Ryan is designing an app that needs to quickly send low quality photos between users. Most smartphones take much higher quality photos than Ryan needs for his app. Which answer best describes the type of compression Ryan should choose and why?
Lossy compression since it typically results in smaller data sizes.
Error from attempting to represent a number that is too precise. The value is rounded.
Convert the decimal (base-10) number 20 to binary (base-2).
10100
Lucy is completing a project as part of a science class using materials she found online. Which of the following is MOST LIKELY to lead to legal consequences?
Using images posted online by another student without permission or citation
Sound waves are example of
Analog Data
Jorge is sending a large image file to a friend as part of a shared classroom project. Which of the following is most likely true if Jorge opts to compress the image before sending it?
The image will require fewer bits in order to be represented
Approximating pi 3.14159265 is an example of
Round-off error
How many total numbers can be represented with an 8-bit binary (base-2) system?
256
Arman takes a picture with his smartphone which he subsequently posts online. Beatrice finds the picture online and posts a copy of it on her website with an attached Creative Commons license. Which of the following best describes who owns the photo?
Arman owns the photo because he was the original creator and did not license the work.
Text documents, images (photos), audio files (music), videos, emails, social media posts, spreadsheets, database entries, code files, are examples of
Digital Data
JPEG, MP3, Streaming are examples of
Lossy Compression
occurs when the total from adding binary numbers cannot be stored within the registers of a CPU.