Topic 6 And 7

Question 1

What is an integer?

Answer 1

Int
Whole number only

Question 2

What is a float or real?

Answer 2

Numbers that can have decimal part

Question 3

What is a Boolean?

Answer 3

Can only take one or two values, usually true or false

Question 4

What is data type character?

Answer 4

Single letter number of symbol

Question 5

What is data type string?

Answer 5

Used to represent text with selection of characters

Question 6

How to workout ASCI number of the letter?

Answer 6

ASC(letter)

Question 7

How to work out which ASCI number is which letter

Answer 7

CHR(code)

Question 8

What does DIV

Answer 8

Divides into a whole number and has no remainder

Question 9

What does MOD Do

Answer 9

Show the remainder of a calculation

Question 10

What does .upper do?

Answer 10

Changes all characters to upper case

Question 11

What does .lower do?

Answer 11

Changes all characters to lower case

Question 12

What does .length do ?

Answer 12

Returns the number of characters in a string

Question 13

What does .left do?

Answer 13

Returns the left character

Question 14

What does .right do

Answer 14

Returns right characters

Question 15

What does .substring do?

Answer 15

Extracts a substring from the string

Question 16

Describe a DO until loops

Answer 16

Controlled by a condition that has to be met
Always run at least once
You can get an infinite loop if the statement is impossible

Question 17

Describe a while loop

Answer 17

Controlled by a condition at the start
Keep going while condition is true
Never run code if condition is initially false
Get and infinite loop if conditions is always true

Question 18

Describe a logic gate

Answer 18

Triangle flowing from input to output with a circle

Question 19

Describe an and gate

Answer 19

A square with rounded top with two inputs and one output

Question 20

Describe an or gate

Answer 20

Looks like the Star Trek sign

Question 21

Function of a Not Gate

Answer 21

It reverse the input or gives the opposite input

Question 22

What is the function of an and gate

Answer 22

Both inputs must be true for a positive result

Question 23

What is the function of an or gate

Answer 23

One or more inputs must be true for a positive result

Question 24

How to code an array

Answer 24

Create be typing array “then array name” [num if element ]
Assign each element a number e.g
Array rowers [4]
Rowers [1] Alfie
Rowers [2] Sid
Rowers [3] Noah
Rower [4] jack

Question 25

How to call an array

Answer 25

Print( name of array and array number) Eg print(rower [4])

Question 26

How to open a file

Answer 26

File = open(“file.txt”)

Question 27

How to create new file

Answer 27

Newfile(“myfile.txt”)

Question 28

How to write lines in a file

Answer 28

Writeline()

Question 29

How to read lines form a file

Answer 29

Readline()

Question 30

How to close file

Answer 30

Close ()

Question 31

What is procedure

Answer 31

A set of instructions that can be called under 1 name that do not return data

Question 32

Functions

Answer 32

Are sets

Question 33

What is a local variable ?

Answer 33

A variable that can only be used in the structure that declared in

Question 34

What is a global variable?

Answer 34

Variables that can be used any time after the declaration

Question 35

What is a high level language?

Answer 35

Source code that is easy for human to write as it is close to English

Question 36

What are low level language

Answer 36

Languages that are hard for human to write as they a far from English

Question 37

What language to computers understand

Answer 37

Machine code

Question 38

Why do we need translators

Answer 38

To translate high level languages into machine code

Question 39

What are the two types of translators

Answer 39

Compiler and interpreter

Question 40

What does an interpreter do?

Answer 40

Translate code on instruction at a time Needed every time the program is run Will return the first error Slower

Question 41

What does a compiler do?

Answer 41

Translates the while script Only need once Returns list of errors Runs quicker

Question 42

What is a IDE

Answer 42

Integrated development environment a piece of software to help the developers

Question 43

Features of an IDE

Answer 43

Translators Auto documents Graphical user interfaces