UI, Python And Data Representation

Question 1

UI

Answer 1

User interface

Question 2

A User interface is

Answer 2

The method in which a person controls a software application or hardware device

Question 3

GUI

Answer 3

Graphical User Interface

Question 4

A Graphical User Interface is…

Answer 4

A mixture of images and text. Offer a wide degree of control over the system

Question 5

Menu

Answer 5

Menu interfaces allow the user to select options from a menu and don’t offer much customisation

Question 6

Text

Answer 6

The user interacts with the interface using written (typed) commands. it requires a high skill level to use a text interface

Question 7

Speech

Answer 7

Controlled by user’s voice

Question 8

Sensor

Answer 8

Sensors are used to detect inputs, these can be motion, light, noise or fingerprints

Question 9

Name the 5 design principles

Answer 9

Colour, Font Style/Size, Use of language, Amount of information, Layout

Question 10

Colour principles

Answer 10

1)Don’t use too many
2)Don’t use bright colours for important stuff
3)Don’t use dull colours for unimportant stuff

Question 11

Font Style/Size

Answer 11

1)Use appropriate font types
2)If you use decorative fonts make them large
3)Ensure it is readable

Question 12

Use of language

Answer 12

Suit the language to the reader

Question 13

Amount of information

Answer 13

Too much information is distracting and hard to read, too little information might leave the user confused

Question 14

Layout

Answer 14

Should be consistent

Question 15

Example of good colour usage

Answer 15

McDonalds using red and yellow as it is their brand’s colours

Question 16

Good example of use of language

Answer 16

A Tesco UI should be simple as it is for anyone but a doctor’s UI could be more complex

Question 17

Algorithm

Answer 17

A step by step set of instructions on how to do something

Question 18

Sequence

Answer 18

The order of the steps in an algorithm

Question 19

Output

Answer 19

When a computer gives information to the user

Question 20

Input

Answer 20

When the computer takes in information from the user

Question 21

Variable

Answer 21

A feature or factor that stores some data

Question 22

Syntax error

Answer 22

Making a error in code that stops it from running

Question 23

List the Data types

Answer 23

String, Boolean, Integer, Float

Question 24

a Float is

Answer 24

A decimal

Question 25

An integer is

Answer 25

A whole number

Question 26

Boolean can be…

Answer 26

True or False

Question 27

String is…

Answer 27

Text

Question 28

The ig command is an example of…

Answer 28

Selection

Question 29

The while command is an example of…

Answer 29

Iteration

Question 30

“names = [“Bob”,”Mike”,”Jim”]” is an

Answer 30

Array

Question 31

==,!=,>=,> are

Answer 31

Comparative operators

Question 32

Order of units of data (smallest to biggest)

Answer 32

Bit,Nibble,Byte,Kilobyte,Megabyte,Gigabyte,Terabyte

Question 33

How many different colours could you have with 4 bits

Answer 33

16

Question 34

What is the relation between the amount of different colours you can have and the number of bits it takes up

Answer 34

No. Bits = 2(to the power of No. Bits)

Question 35

How to figure out the amount of bits an image is

Answer 35

No. Pixels x number of colours squared

Question 36

ACII means

Answer 36

American Standard Code for information interchange

Question 37

What base is denary

Answer 37

Base 10

Question 38

What base is hexadecimal?

Answer 38

Base 16

Question 39

What base is binary?

Answer 39

Base 2