> For the complete documentation index, see [llms.txt](https://cs.brash.ca/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cs.brash.ca/unit-1.md).

# Unit 1: In the Beginning

- [The History of Computers](https://cs.brash.ca/unit-1/history.md): In order to know where we are headed, we need to know where we've come from! The history of the modern-day computer is actually quite interesting and students will discover it as a group.
- [Binary & Logic](https://cs.brash.ca/unit-1/binary-and-logic.md): Digital processors require electricity to work. But how do they make decisions or calculate something as simple as 2+2 or as complex as ray tracing in graphics?
- [Bits and Bytes (Binary)](https://cs.brash.ca/unit-1/binary-and-logic/bits-and-bytes-binary.md): Electricity can be on or off. That's it. So how do computers hold numbers?
- [Transistors (Changing Bits)](https://cs.brash.ca/unit-1/binary-and-logic/significance-of-switching.md)
- [Logic Gates](https://cs.brash.ca/unit-1/binary-and-logic/logic-gates.md)
- [Poster](https://cs.brash.ca/unit-1/binary-and-logic/logic-gates/poster.md): I designed the following poster for my classroom. You can contact me for a hi-res version, if you'd like to print it.
- [Logic.ly](https://cs.brash.ca/unit-1/binary-and-logic/logic-gates/logic.ly.md)
- [The Parts of a Computer](https://cs.brash.ca/unit-1/the-parts-of-a-computer.md): This page will be developed in the future... This whole site is a work in progress.  :)