Binary and Hexidecimal Numbers

Question 1

How do you convert Dernary into Hexidecimal?

Answer 1

• Divide the number by 16, then find the remainder and multiply it by 16
  > This will be the last digit
• Divide the whole number that you got in the first division again by 16
  > Get the remainder and times it by 16; this will be the next digit

Do this until the whole number divides into 0

Question 2

How do you convert Hexidecimal to Decimal

Answer 2

• You times each number to the corrresponding power of 16
  so the last number will be stimes by 16^0, the next by 16^1 and so on
  You add the totals and you get ur decimal number

Question 3

What are the two main character sets used in coding>?

Answer 3

• ASCII (American Standart Code for Informational Intergchange)
• Unicode (univrsal code used to represent thousands of symbols and character for other countries for example)

Question 4

How does original ASCII represent letters and stuff

Answer 4

• 7 bits and 1 other bit for reference

- So 2^7 altogether gives 127 + the 0 bit, which gives 128 different possible values to be represented