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Added markdown syntax highlighting to lesson #1

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hunterbridges merged 1 commit into from
Mar 26, 2014
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Added markdown syntax highlighting to lesson #1

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18 changes: 9 additions & 9 deletions README.md
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Expand Up @@ -10,7 +10,7 @@ For this lesson you'll need to have _Python 2.7_ installed. If you're on Mac or

Let's jump right into some code. Create a new Python file called `binary_example1.py`. Type this into it:

```
```py
num = 1
print num

Expand All @@ -21,7 +21,7 @@ for i in range(11):

Run it, and you'll see that this is what you get:

```
```sh
$ python binary_example1.py
1
2
Expand Down Expand Up @@ -80,7 +80,7 @@ So that is the basics of how transistors came to be used in computer hardware. H

Let's look at `binary_example1.py` again.

```
```py
num = 1
print num

Expand All @@ -99,7 +99,7 @@ The **left shift operator** (`<<`) takes the binary version of the number to the

So throughout our program, the variable `num` is backed by these values:

```
```py
00000001 # num = 1
00000010 # num = num << 1
00000100 # num = num << 1
Expand All @@ -112,7 +112,7 @@ So throughout our program, the variable `num` is backed by these values:

See how the `1` bit shifts to the left with every cycle of the `for` loop? We can map these **octets** to our program output to see how they match up.

```
```py
00000001 # 1
00000010 # 2
00000100 # 4
Expand All @@ -126,7 +126,7 @@ See how the `1` bit shifts to the left with every cycle of the `for` loop? We ca

What about `256`, `512`, `1024` and `2048`? Python knows that it needs another **byte** to store those larger numbers, so we get another **octet** to left shift into.

```
```py
00000000 00000001 # 1
00000000 00000010 # 2
00000000 00000100 # 4
Expand All @@ -147,7 +147,7 @@ Now we need to understand why the position of the `1` bit determines which numbe

Let's make a new Python file and call it `binary_example2.py`. It's going to be a lot like our first example, but we are going to replace the **left shift** with another expression.

```
```py
num = 1
print num

Expand All @@ -158,7 +158,7 @@ for i in range(11):

**What do you think this program outputs?** Here's a hint: remember how after we played the _2048_ game I said to think about the numbers as `2 * 2`, `2 * 4`, `2 * 8`, and so on? Lo and behold!

```
```sh
$ python binary_example2.py
1
2
Expand Down Expand Up @@ -233,7 +233,7 @@ So letters on a computer are just an illusion! At least an illusion as far as th
Here's our last example, `binary_example3.py`. I am using the `ord()` and `chr()` functions to find the number value for a character, messing with that
number, then turning it back into a character.

```
```py
letter_a = "A"
letters = []

Expand Down