Number Systems

Question 1

Bit

Answer 1

• b
• Smallest unit of storage
• Stores 0 or 1

Question 2

Byte

Answer 2

• B
• collection of 8 b
• Can store one character
• 0-225

Question 3

Decimal to Binary

Answer 3

• Divide by two
• Remainder = 1
• No remainder = 0

Question 4

Binary to Decimal

Answer 4

Largest number is 128
Smallest number is 1

Question 5

Binary to Hexadecimal

Answer 5

1. Make the binary have 4, 8, 12, 16, etc. amount of digits
2. Group the binary into groups of 4
3. Convert each group to hexadecimal

Question 6

What does 0x represent

Answer 6

The prefix to represent when a number has been written in hexadecimal

Question 7

Hexadecimal to Binary

Answer 7

1. Convert the number or letter to decimal
2. Remove any leading zeros

Question 8

Hex to decimal

Answer 8

Rightmost digit is multiplied by 16^0
Next by 16^1
Next by 16^2
…
Add all of them together