Under the Hood of Computer

Under the Hood of Computer

Number System

Learning Objective

Be able to understand the common units of measuring data and number systems.

Watch the video and discuss[You tube video - Computer Science Basics: Binary]

https://www.youtube.com/watch?v=M41M9ATm49M

Multiple Choice

Computers use a special code of their own to express the digital information they process. What is it called?

• Denary

• Bit

• Binary

• Hexadecimal

Multiple Choice

What do you call these 0's or 1's?

• Bytes

• Mega Byte

• digit

• bit

How do computers see the world?

Key Terms

Bits

Bytes

Binary Number System

Denary/Decimal Number system

Bit

●All data that we want a computer to process is converted into binary numbers.

●All the data that is processed in binary numbers is represented in a sequence of 1’s and 0’s.

●Each 1 and 0 in the sequence is called a BIT. [Derived from BInary digiT]

Byte

•A Byte = 8 Bits.

•1 Byte could be equal to one character.

• 10 Bytes could be equal to a word.

•100 Bytes would equal an average sentence.

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

What is Denary??

• Numbers that we use every day

  0, 1, 2, 3, 4, 5, 6, 7, 8, 9

• We use 10 different digits

• This is called base 10 (Denary is based on 10 different digits)

Multiple Choice

How do you represent 6 in binary?

• 101

• 110

• 111

• 011

Multiple Choice

You have seen how is it possible to count up to 7 in binary. How would you count to 8?

• Cannot count

• using 2-bits

• Using 4- bits

Open Ended

How do we relate this binary number system to Science?

Homework

To create binary numbers with 4 bit  representation[ 0 to 15].