CSP Assessment 1

bits

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

False

True of false: Abstraction helps represent complex information by surfacing complexity that might otherwise be hidden.

digital, analog

If you take a picture of a painting, the photos is _________ while the painting is __________

15

The LARGEST number you can make with 4 bits before an overflow error occurs is:

overflow error

An error that occurs when a fixed number of bits some numbers are too large to represent in a computer

11

Convert the binary (base-2) number 1011 to decimal (base-10).

11001

Convert the decimal (base-10) number 25 to binary (base-2).

5

Convert the binary (base-2) number 0101 to decimal (base-10).

11100

Convert the decimal (base-10) number 28 to binary (base-2).

lossy, lossless

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

Image compression

Any technique that recodes the data in an image file so that it contains fewer bits

Creative Commons

Free, easy-to-use copyright licenses provide a simple, standardized way to give the public permission to freely distribute and use copyrighted work work on conditions of your choice

Lossy Compression

data compression techniques in which some amount of data is lost. This technique attempts to eliminate redundant information.

256

The 8-bit binary (base-2) system can represent a total of ______ numbers.

Lossless Compression

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

intellectual property

Material created on a computer is the ___________ _____________ of the creator or an organization.

open source

programs that are made freely available and may be redistributed and modified

Abstraction

________________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, abstraction reduces complexity and allows one to focus on the idea.

overflow

In many programming languages, integers are represented by a fixed number of bits, which limits the range of integer values and mathematical operations on those values. This limitation can result in _______________ or other errors.

256

Your computer uses 8 bits to represent decimal numbers (0, 1, 2, 3 and so on) in binary. What is the SMALLEST number for which an overflow error can occur?

7

Your computer uses 3 bits to represent decimal numbers (0, 1, 2, 3 and so on) in binary. What is the LARGEST number that can be made before an overflow occurs?