# 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. :) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://cs.brash.ca/unit-1.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.