Y8 – AU1.1 – Binary

⏱️ Do It Now

Create a OneNote Page and copy this into the title:

Lesson 1 – Summer 1 – Introducing Binary

Copy this into a OneNote Page and complete it

📝 Do It Now

Topic from which to answer questions

Do each of the following:

Explain what is meant by a variable
Explain what the print() function does
Explain what functions are, and why they might be used in a program

🎯 Learning Objectives

LO1: Be able to explain why electronic signals are stored as 1s an 0s
LO2: Be able to describe how computers store denary (human) numbers in binary form
LO3: Be able to apply knowledge of binary and denary in converting between both number systems

📖 Everybody Reads

🖥️

How Computers Work

Computers are made from millions of microscopic switches called Transistors
All data on computers is stored as 1s and 0s; a system called Binary

Transistors

Transistors are tiny electronic switches that can be switched on by passing an electrical current through their base plate.

Because each transistor can be switched on by an electrical current one transistor can be used to control another. This enables us to create patterns (and ultimately, complex things such as computer software).

Binary

Because switches (such as transistors) can only be on or off, we can only use two values to represent their current state

Computer Scientists decided to represent these two states with 1 and 0

1 = ON

0 = OFF