Computer Science Principles - Semester 1 Review

Front

Which decimal (base-10) value is equivalent to the binary (base-2) value 101001? Options: 22, 37, 41, 82

Back

41

Front

The smallest unit of information is

Back

a bit

Front

The smallest visual element on a video monitor is called what?

Back

Pixel

Front

A single unit of information represented by a 1 or 0...

Back

Bit

Front

What is the 4-bit binary number for the decimal number Ten (10)?

Back

1010

Front

What is the decimal equivalent of 11010011?

Back

211

Front

Large amounts of structured and unstructured data that can potentially be mined, examined, and used by organizations is the definition of

Back

big data

Front

The representation of information using a chart, diagram, image, etc. is the definition of

Back

visualization(s)

Front

A collection of numbers or values that relate to a particular subject usually portrayed in a relational database table. Example: column header and row contents for test scores for each student. This is the definition of

Back

data set

Front

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. Which of the following could be a possible explanation for the difference in sound quality? Options: The song was saved using fewer bits per second than the original song., The song was saved using more bits per second than the original song., The song was saved using a lossless compression technique., Some information is lost every time a file is saved from one location on a computer to another location.

Back

The song was saved using fewer bits per second than the original song.