Crash Course #4 - Binary Numbers and Letters with Binary

• Define Binary

• Define Bit

• Convert a binary value to decimal

• How many colors did an 8 bit game have access to?

• Define Byte

• What is the first bit in a binary number usually used to represent?

• Define Floating Point Numbers

• Define ASCII

• What do the values 65 and 97 represent in ASCII?

• How many values are on the extended ASCII table?

• What does mojibake mean?

Numberphile - 15 and Hexadecimal

• Hexadecimal is also known as base _____.

• Why is hexadecimal useful for programmers who want to understand memory addresses in a computer?

  • Advantages over binary?

  • Advantages over decimal?

Number System Conversions

• Read the text tutorial and/or watch the video tutorial and then practice.

  • Text Tutorial - Converting Numbers

• Master how to convert between Decimal and each of the three number systems. Your quiz will ask you to do a few conversions to test your ability. If you don’t love these sources, feel free to use any others you find online!

• Decimal <-----> Binary Conversion (both ways)

• Decimal <-----> Octal Conversion (both ways)

• Decimal <-----> Hexadecimal Conversion (both ways)