< about basic components of computer ([local link](Computer_Basics__Inside_a_Desktop_Computer.mp4)),
2. Opening the desktop to physically show the different components of classic desktop. More details here on [www.gcfLearnFree.org/computerbasics/5](http://www.gcflearnfree.org/computerbasics/5.2),
3. Introduction to variables (numbers, strings) with the syntax: `year = 2015`,
4. Getting numbers and strings as input from users (`raw_input`, `input`),
5. Programs to calculate area of rectangle, square and triangle,
6. How to access (and why you should do it) the *Python* [help](https://docs.python.org/2/) and documentation with [*Spyder IDE*](https://pythonhosted.org/spyder/)?
7. Introduction to [**Variable Explorer**](https://pythonhosted.org/spyder/variableexplorer.html) and [**File Explorer**](https://pythonhosted.org/spyder/explorer.html) in *Spyder IDE*, representation of the "*internal*" memory (live memory),
8. **Homework:** Read these 2 pages on the Python documentation: [appetite](https://docs.python.org/2/tutorial/appetite.html) and [tutorial](https://docs.python.org/2/tutorial/introduction.html#strings) (about strings).
---
### Example program (for the square)
```python
# -*- coding: utf8 -*-
print "Computing the area of a square:"
size = input("Enter the size (in meter) of the side of your square please: ")
area = size * size # also possible with: size ** 2
print "That square has size", area, "m²."
```
---
### Example program (for the rectangle)
```python
# -*- coding: utf8 -*-
print "Computing the area of a rectangle:"
width = input("Enter the first side (in meter) of your rectangle please: ")
height = input("Enter the first side (in meter) of your rectangle please: ")
area = width * height
print "That rectangle has size", area, "m²."
```
---
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