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Unit 1 Digital Information

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

(short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1

a)

Bit

b)

Binary

c)

Digit

d)

Byte

2.

a unit of data that is eight binary digits long. Often used to represent a character such as a letter, number, space

a)

Bit

b)

Byte

c)

Binary

d)

Digit

3.

a numbering scheme in which there are only two possible values for each digit: 0 and 1.

a)

Bit

b)

Byte

c)

Binary

d)

Digital

4.

  a complete, well-defined sequence of steps for completing a task or solving a

problem

a)

Code

b)

Algorithm

c)

Bit

d)

Byte

5.

a sequence of instructions or steps, written in a language that can be

understood by a computer, that will be used by the computer to complete a task or solve

a problem

a)

Algorithm

b)

Binary

c)

Program

d)

Blocks

6.

Puzzle-piece shapes that are used to create code in Snap!.

a)

Blocks

b)

Widget

c)

Algorithm

d)

Code

7.

Different types of blocks linked together.

a)

Blocks

b)

Scripts

c)

Snap!

8.

An object in Snap! which performs functions controlled by scripts.

a)

Sprites

b)

Scripts

c)

Snaps

d)

Tic Toks

9.

The background of a project, performs functions through scripting

a)

Stage

b)

Theatre

c)

Script

d)

Sprite

10.

a mistake in the algorithm or program that causes it to behave incorrectly or unexpectedly

a)

Stop

b)

Snap

c)

Overflow Error

d)

Logic Error

11.

hand simulating the execution of program code in order to manually verify that it works correctly

a)

Tracing

b)

Drawing

c)

Web Design

d)

Prototyping

12.

error that is produced when a computer is used to perform real number calculations because many real numbers can not be represented exactly on a computer.

a)

Overflow Error

b)

Roundoff Error

c)

Underflow Error

d)

Syntax Error

13.

occurs in a computer or similar device when a mathematical operation results in a number which is smaller than what the device is capable of storing.

a)

Overflow Error

b)

Underflow Error

c)

Syntax Error

d)

Debugging Error

14.

a minute area of illumination on a display screen, one of many from which an image is composed.

a)

Pixel

b)

Pixar

c)

Dreamworks

d)

Byte

15.

refers to a system for representing the colors to be used on a computer display. Red, green, and blue can be combined in various proportions to obtain any color in the visible spectrum.

 

a)

BMW

b)

RGB

c)

Pixel

d)

Color Wheel

16.

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

a)

Heuristic

b)

Design Thinking Process

c)

Rapid Prototyping

d)

Code

17.

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

a)

Digital Compression

b)

Limitless Compression

c)

Lossless Compression

d)

Lossy Compression

18.

a data encoding and compression technique that deliberately discards some data in the compression process

a)

Lossy Compression

b)

Lossless Compression

c)

Digital Compression

d)

Pixel Imaging

19.

public copyright license that enables the free distribution of an otherwise copyrighted work. This is used when the content creator wants to give others to right to share, use and build upon the work they have created;

a)

Copyright Infringement

b)

Plagiarism

c)

Creative Commons

d)

Crowdsourcing

20.

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

a)

Open Source

b)

Creative Commons

c)

Expired Copyright

d)

Downloadable Software

21.

online research output free of any and all restrictions on access and free of many restrictions on use, such as copyright or license restrictions

a)

Open Access

b)

Open Source

c)

Open Door

d)

Creative Commons