Week 1

Question 1

What is data

Answer 1

Values without context or structure

Question 2

What does information mean in relation to data?

Answer 2

values with context or structure

Question 3

What is a “type”; give examples

Answer 3

a category for values (int, str, float, bool)

Question 4

What does value mean in relation to python

Answer 4

objects / words / number - data that python works with.

Question 5

What are compound values; give examples

Answer 5

combinations of data values (lists, tuples, dictionaries

Question 6

Name 5 types of simple data used in python

Answer 6

int, str, float, bool, complex numbers, bytes

Question 7

What is programming

Answer 7

a sequence of instructions that specify how to perform a computation

Question 8

What are the characteristics of pseudo code

Answer 8

1. written in simple English.
2. describes how the program works.
3. can not be executed by a computer.
4. easy for humans to read and understand.

Question 9

What is an algorithm

Answer 9

step by step instructions that will solve a problem, when followed exactly.

Question 10

What is meant by bugs in programming

Answer 10

programming errors

Question 11

What is debugging

Answer 11

tracking down and correcting errors

Question 12

What is a syntax error

Answer 12

errors in the structure of the program, this is checked first.

Question 13

What is a run time error

Answer 13

errors that occur only when the program is running (i.e. after syntax errors have been checked)

Question 14

What is a semantic error

Answer 14

you will not get the result you wanted, but the program will run.

Question 15

What is meant by input

Answer 15

to get data from a keyboard, file or network

Question 16

What is meant by output

Answer 16

displaying data on a screen, save to a file or send over the network.

Question 17

What is a conditional statement

Answer 17

the program checks for certain conditions and runs the code according.

Question 18

What is meant by repetition

Answer 18

performs an action repeatedly, usually with a variation.

Question 19

Name 5 basic operators (and the symbols)

Answer 19

1. addition - +
2. subtractions -
3. multiplication *
4. division /
5. exponentiation (to the power of) **

Question 20

What is a “list” and name 2 features

Answer 20

[a collection of data] / always sits inside [] square brackets / first value is always recognised a 0.

Question 21

What is meant by “range” in relation to for x in range function. Name 2 features.

Answer 21

Makes the loop start from the lowest value and finish on the highest. However the highest value is always - highest value - 1.