Term 3 Binary and Python

Question 1

How many values does binary have?

Answer 1

2

Question 2

What number does 0 0 0 1 0 1 0 1 represent in 8 bit binary?

Answer 2

21

Question 3

What number does 0 0 0 1 0 1 0 0 represent in 8 bit binary?

Answer 3

20

Question 4

What number does 0 0 0 1 0 0 1 1 represent in 8 bit binary?

Answer 4

19

Question 5

How would the number 33 be represented in 8 bit binary?

Answer 5

0 0 1 0 0 0 0 1

Question 6

How would the number 99 be represented in 8 bit binary?

Answer 6

0 1 1 0 0 0 1 1

Question 7

What is pseudocode?

Answer 7

A method of writing up a set of instructions for a computer program using plain English. This is a good way of planning a program before coding.

Question 8

What is a program?

Answer 8

A sequence of instructions for a computer.

Question 9

What is a programming language?

Answer 9

A language used by a programmer to write a piece of software e.g. Python

Question 10

What is programming?

Answer 10

The process of writing computer software.

Question 11

What word means “the set of rules that define the combinations of symbols that are considered to be correctly structured programs in that language”?

Answer 11

Syntax

Question 12

What would happen if you wrote the following program using python:

print (“Hello, World)

Answer 12

An error message would be displayed as a quote mark is missing

Question 13

Which word best fits this description “In a computer program, this is a memory location where values are stored.”?

Answer 13

Variable

Question 14

What would happen if you wrote the following program using python:

print (“2” + “2”)

Answer 14

22 would be displayed on the screen (the values shown are strings not integer values so + puts the two together and doesn’t add them up)

Question 15

Which data type represents numbers containing a decimal point?

Answer 15

Float

Question 16

Which data type represents whole numbers?

Answer 16

Integer

Question 17

Which data type represents a list of characters in order eg. “Hello World”?

Answer 17

String

Question 18

What would happen if you wrote the following code using Python:

print(“What is your name?”)

name = input()

print(“Hello “ + name)

Answer 18

The user would be asked their name, if they then input their name as Dave this would then be printed as “Hello Dave” on the screen