Intro to Hexidecimal

Hexidecimal

By: Kevvin Joel Hankins Sr.

Poll

How are you feeling today?

• I'm great!

• I'm okay but I could do better.

• Not too good.

• I'm having an awful day.

Poll

Are you taking good care of yourself? (no wrong answers)

• Yes

• Sometimes

• No.

Poll

Did you sleep well last night? 

• Yes! I slept like a baby.

• I slept okay.

• I didn't sleep good last night.

• Didn't sleep at all.

Standard

​IT-CSP-3

Apply abstractions in digital data to explain how bits are grouped to represent higher-level abstractions, such as numbers and characters.

Learning Target

​IT-CSP-3.1, IT-CSP-3.4

I can model how a combination of abstractions built upon binary sequences can be used to represent all digital data.

I can show multiple levels of abstraction used in computation.

Multiple Select

What will you learn in this lesson?

• What is meant by the term "hexadecimal"

• Why hexadecimal is used

• How to convert numbers between hexadecimal and binary

• How to count to 100 in base ten

​11110010111010110101000101100111

Multiple Choice

What set of digits is available in hexadecimal?

• 0..9 and A..F

• 0..15

• 0..9 and a..f

• 0..9 and A..Z

Multiple Choice

How many bits are needed to represent one hexadecimal digit?

• 4

• 2

• 8

• 16

Multiple Choice

What is the decimal value of this hexadecimal number?

FFF

• 255

• 1023

• 2047

• 4095

Multiple Select

Choose all the places in Computer Science where hexadecimal numbers are used ....

• Representing RGB colours

• IPv6 addresses

• Device MAC addresses

• IPv4 addresses

Multiple Choice

What is the main reason that hexadecimal numbers are used in computer science?

• Shortens binary data by 75%

• Takes up less storage space in RAM

• They can represent a greater range of values than binary

• Easier to do arithmetic calculations

Open Ended

What was the most important thing you've learnt in this lesson and why?

Poll

How much of this lesson have you understood?

• None of it

• Some of it

• Most of it

• All of it