Which of the following best describes how computing devices represent information?

A computer represents data as bits which is either a 0 or a 1

A computer will either represent information as bits or bytes but not both

A computer represents data as a byte which is either a 0 or a 1

A computer represents information as bits which contain 8 bytes.

Which of the following is NOT true of how computers represent complex information?

Abstraction helps represent complex information by surfacing complexity that might otherwise be hidden

Computing devices use patterns of bits to represent complex information

Depending on context the same sequence of bits may represent different types of information

Common abstractions that are represented by computing devices include numbers, characters, and color.

When visiting a museum Lian takes a photo of a painting with a smartphone which stores the photo as an image file. Which of the following best describes the differences between the painting itself and the photo of the painting stored on the smartphone?

The photo is a digital representation of the analog painting

Both the painting and the photo are analog

Sampling can be used to determine whether the analog image is an accurate representation of the painting

The phone can represent the photo in either digital or analog formats depending on the sampling technique that is used

Which of the following is true of how computers represent numbers?

With a fixed number of bits some numbers are too large to represent in a computer which will lead to overflow errors.

Using a fixed but large number of bits can eliminate the possibility of round off error when representing numbers in binary

Using a fixed but large number of bits, for example 128, eliminates the possibility of overflow errors.

With a large but fixed number of bits it is possible to eliminate either round-off errors or overflow errors, but not both.

Which of the following is true of lossy and lossless compression algorithms?

Lossy compression algorithms are typically better than lossless compression algorithms at reducing the number of bits needed to represent a piece of data.

Lossy compression algorithms are used when perfect reconstruction of the original data is important.

Lossless compression algorithms are only used to compress text data

Lossless compression algorithms only allow for an approximate reconstruction of the original 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.

The image can no longer be represented using bits.

The image will have been converted into an analog form.

The image will require more pixels to display it on the screen.

Which of the following is true of intellectual property?

Creative Commons enables content creators to freely distribute their otherwise copyrighted work.

Information created on a computer is not owned by anyone since only analog information is protected under copyright law.

You do not need to cite work created by someone else if both the original work and your use of it are in digital form.

Creative Commons has severely hindered broad and open access to digital information

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.

Modifying a piece of open source software.

Using open access research for which she does not acquire a license

Failing to publish her work under a Creative Commons license.

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.

Lossless compression since it ensures perfect reconstruction of the photo

Lossy compression since it ensures perfect reconstruction of the photo

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.

Beatrice owns the photo because only holders of a Creative Commons license can own works online.

Arman owns the photo because it was granted a Creative Commons license by another person online.

Both own the photo because creating a copy makes it her intellectual property.

CSP Unit 1 Review

Authored by Catherine Stevens

Computers

9th - 12th Grade

Used 2+ times

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28 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A way of representing information using only two options.

Binary

Bit

Byte

Overflow Error

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A way of representing information using ten options.

Binary

Decimal

Bit

Sampling

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1

Binary

Bit

Byte

Decimial

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

8 bits is also know as a ___________

Byte

Analog Data

Decimal

Digital Data

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Error from attempting to represent a number that is too large.

Overflow Error

Round-off Error

Sampling

Lossless Compression

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Error from attempting to represent a number that is too precise. The value is rounded.

Round-Off Error

Overflow Error

Lossless Compression

Lossy Compression

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Digital Data

Sampling

Overflow Error

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CSP Unit 1 Review

A way of representing information using only two options.

A way of representing information using ten options.

A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1

8 bits is also know as a ___________

Error from attempting to represent a number that is too large.

Error from attempting to represent a number that is too precise. The value is rounded.

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.

Data that changes discretely through a finite set of possible values

A process for creating a digital representation of analog data by measuring the analog data at regular intervals called sample

A process for reducing the number of bits needed to represent something without losing any information. This process is reversible.

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