Come on in - sit anywhere you like

• Find your nametag and stand it up on your desk
• Get out your flippy do and your bingo card
• With your table, discuss this question: “A computer program uses 3 bits to represent integers. When the program adds the decimal (base 10) numbers 5 and 3, the result is 0. What is the best explanation for the result?”

Overflow! We’ll talk more about this later

Last time we…

• Looked at parts of a computer
• Invented counting systems with everyday objects

Let’s Play Bingo!

My Quiz/Test retake policy

• At the end of each quarter we will have a quarter exam
• This quarter exam is your retake
• It will be divided into sections, and each section correspond to one quiz
• You can choose to take any/all sections

Canvas: “9/13 Binary Quiz”

• You may use your flippy do

First - how would you adapt your Flippy Do to handle negative numbers?

The video that broke Youtube

• Imagine you are the engineer who invented Youtube in 2005.
• You need to create a system to track the view count
• How many bits should to reserve?

32 Bits

• The first bit is for sign
• What is the biggest number you can represent with 31 bits?

Then this happened

This is a recap slide

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