Automate the Boring Stuff with Python was a brilliant concept for a book when it first came out 10 years ago, and it remains a brilliant concept today. This is evidenced by the fact that it’s been one of the go-to resources for learning Python for as long as it’s been in print. If you need to solve a specific task right now, you’ll find many practical examples in this book that you can adapt to your own needs. If you’re interested in developing a more general understanding of programming, implementing a series of real-world projects like the ones you’ll find here is a great way to do so.
How Computers Store Data with Binary Numbers.
That’s enough Python code for now. At this point, you might think that programming seems almost magical. How does the computer know to transform 2 + 2 into 4? The answer is too complicated for this book, but I can explain part of what’s going on behind the scenes by discussing what binary numbers (numbers that have only the digits l and o) have to do with computing.
Hacking in movies often involves streams of is and os flowing across the screen. This looks mysterious and impressive, but what do these is and os actually mean? The answer is that binary is the simplest number system, and it can be implemented with inexpensive components for computer hardware. Binary, also called the base-2 number system, can represent all of the same numbers that our more familiar base-10 decimal number system can. Decimal has 10 digits, о through 9. Table 1-4 shows the first 27 integers in decimal and binary.
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