Number Systems

With a number system, what is a "base" referring to?

• The number of symbols, including 0, that make up the counting method of that system
• The number of Columns that a number system can support
• A method of comparing different number systems
• The number of sets a number system can represent before needing a larger based number system

What would the highest single number be in Oct?

• 7
• 8
• 9
• 0

If I have a base 7 number system, what would the maximum value one digit could represent?

• 6
• 7
• 8
• Infinity 

Convert 1011₂ in to Denary (Base 10).

• 10
• 11
• 9
• 8

What base is Octal?

• 10
• 2
• 8
• 16

Which of these statements is NOT true?

• Binary uses a base 2 system
• The highest value a single digit in Binary can be is 1
• We can uses all the same operations in binary that we can in other systems
• Binary is only useful for computing

Convert! 
1001 in to Denary (Base 10).

• 5
• 8
• 9
• 23

Convert! 
1101 in to Denary (Base 10).

• 13
• 12
• 15
• 16

Convert!
What is 23 as a Binary (Base 2) number?

• 10111
• 10101
• 11110
• 01101

What is 1001 + 1010 + 0110 as a Denary (Base 10) number?

• 22
• 23
• 24
• 25