Unit 2

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

What is a byte?

Back (Answer)

A unit of data that is 8 bits long. It is considered a standard “chunk size” for binary information in most modern computers.

Front (Question)

What is a kilobyte?

Back (Answer)

A unit of data made up of 1024 bytes

Front (Question)

What is a megabyte?

Back (Answer)

A unit of data made up of 1024 kilobytes

Front (Question)

What is a gigabyte?

Back (Answer)

A unit of data made up of 1024 megabytes

Front (Question)

What is a terabyte?

Back (Answer)

A unit of data made up of 1024 gigabytes

Front (Question)

What is a petabyte?

Back (Answer)

A unit of data made up of 1024 terabytes

Front (Question)

What is an exabyte?

Back (Answer)

A unit of data made up of 1024 petabytes

Front (Question)

What is a zetabyte?

Back (Answer)

A unit of data made up of 1024 exabytes

Front (Question)

What is the SI Prefix Value Table?

Back (Answer)

Exa-E-10^18 Peta-P-10^15 Tera-T-10^12 Giga-G-10^9 Mega-M-10^6 kilo-k-10^3

#10

Front (Question)

How much bigger is a megabyte than a kilobyte?

Back (Answer)

1000 times bigger

#11

Front (Question)

What is heuristic?

Back (Answer)

A problem-solving approach (algorithm) to find a satisfactory solution where finding an optimal or exact solution is impractical or impossible.

#12

Front (Question)

Which one is heuristic? Piecewise vs. holistic

Back (Answer)

Holistic

#13

Front (Question)

Which one is heuristic? Inductive vs. deductive

Back (Answer)

Deductive

#14

Front (Question)

What is a pixel?

Back (Answer)

A picture element, of a fundamental of a digital image. It is typically a tiny square or dot which contains a single point of color of a larger image

#15

Front (Question)

What is a Image?

Back (Answer)

A type of data used for graphics or pictures

#16

Front (Question)

What is metadata?

Back (Answer)

Data that describes other data Size of the image, number of colors, resolution

#17

Front (Question)

What is RGB?

Back (Answer)

This model uses varying intensities of Red, Green, Blue light that are added in together to create a broad array of colors

#18

Front (Question)

36 bit color can represent ____________ times the total number of colors that 24 bits can represent

Back (Answer)

2^12

#19

Front (Question)

What shows the hex value for Red as a 12 bit representation?

Back (Answer)

F00

#20

Front (Question)

What is Lossless Compression?

Back (Answer)

A data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data

#21

Front (Question)

What is Lossy Compression?

Back (Answer)

Compression scheme in which “useless” or less than totally necessary information is thrown out in order to reduce the size of the data (eliminated data is unrecoverable)

#22

Front (Question)

What types of files are lossy?

Back (Answer)

MP3, JPG, JPEG

#23

Front (Question)

What types of files are lossless?

Back (Answer)

BMP, GIF, WAV, PNG, ZIP

#24

Front (Question)

What is true about data compression?

Back (Answer)

There are trade-offs involved in choosing a compression technique for storing and transmitting data