Intro to Programming

Question 1

The output of the input function is always a

Answer 1

string

Question 2

pros/cons of python

Answer 2

• can quickly write programs
• no overhead
  cons: not as fast/efficiently

Question 3

Why to not use word processor?

Answer 3

screw up the formatting

Question 4

Process for programs to be ready by computer

Answer 4

program is yranslated into binary machine language

Question 5

do not click on the previously created program to open it because….

Answer 5

operating system will try to run python programs (not allow you to edit it)

Question 6

Naming files (2)

Answer 6

• no spaces
• Use alphabetical characters, numbers may be used but the first number is only alphabetic

Question 7

Variables (3)

used to do what?+what happen if u put anothe info in+accesibility?

Answer 7

• Used to store information (temporary)
• can store one piece, putting another peice can overwrite previous entry
• at most the info will be accesible as long as the program runs

Question 8

type of info that can be stored in variables: (3)

Answer 8

1. integers (whole number)
2. floating point (fractional)
3. strings (character info)

Question 9

The assignment operator+ tell me about photocopying (y=3 x=y y=6)

Answer 9

• not the same as equal
• you change y when y=x, x doesnt change

Question 10

When naming a variable (3)

Answer 10

• names must start with a letter and should not behin with an underscore
• should be all lower case

Question 11

division symbol

Answer 11

/

Question 12

integer division symbol+ what it does

Answer 12

//
9//2 ->4

Question 13

exponent symbol

Answer 13

**

Question 14

order of operation (2)

Answer 14

1. brackets, exponent, multiplication/division/modulo, addition/subtraction, assignment
2. If there are multiple operations that are on the same level then prescendance goes from left to right

Question 15

Triple quote

Answer 15

Prints exactly what you typed

Question 16

bits

Answer 16

A bit in computer science holds the information of a ‘yes-no’ question - 1 means yes, 0 means no.

When you put a few bits together you can represent a larger number (think combinations).

With a larger number you can represent letters from an alphabet or colors on a screen or volume levels of sound and music.

And there you have it — a computer system, built on the bit.

Question 17

converting float to integers will

Answer 17

not round the number, just cut off

Question 18

”+ with strings”

Answer 18

Concatention

Question 19

+ with non strings

Answer 19

• can do it with integers and float
• literally adds it

Question 20

+ with integers:
what happens if:

Answer 20

Question 21

print format with format specifiers:

Answer 21

print (“course: %s%d” %(num, sum))

Question 22

print format with format specifiers:

Answer 22

print (“course: %s%d” %(num, sum))

Question 23

%d

Answer 23

integer

Question 24

%f

Answer 24

floating point

Question 25

What does print (“$3s-3%s” %(“ab”, “ab”)) look like?

Answer 25

Question 26

positive integer add leading spaces…

Answer 26

before the information to display (Right alighn)

Question 27

print (“%f%%” %(100)) gives

Answer 27

100.000000000%

Question 28

\a

Answer 28

alarm causes the program to beep

Question 29

\n

Answer 29

new line moves cursor to begining of the next line

Question 30

\t

Answer 30

tab moves curesor forward one tab stop

Question 31

'

Answer 31

single quote prints a single quote

Question 32

'’

Answer 32

prints a double quote

Question 33

\

Answer 33

prints one blackslash