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Binary Binary Presentation Transcript

  • Binary
  • Starter Activity: Number Combinations How many different number combinations can you make from the following cards? 1.2 + 4 = 6 2.1 + 8 = 9 Binary
  • In this lesson you will learn about how computers represent words and numbers using just two numbers. You will act as a computer by converting binary numbers into decimals and text. Lesson Objectives  Be able to convert binary to decimal numbers  Understand how binary represents numbers and text  Be able to convert binary to characters  Understand how a computers speed is calculated Binary
  • Binary •The only two numbers computers understand are one and zero (1 is on and 0 is off) •The magic of computers is that they have the ability to convert them into something that we can understand such as text and images •The numbers are often referred to as bits as they represent a “bit” of a word, a number, sound etc. •When these numbers are put together they are referred to as binary numbers Binary
  • Binary Demo Watch the Binary video, this will introduce you to how binary works. Binary
  • Task 1: Converting Binary into Decimal Click on the ‘Binary to Decimal Converter’ link which is in the Getting Technical folder in Groupwork. Click on the button. Convert 10 binary numbers of your choice to decimal numbers. Try and work out the decimal number before you click convert. Binary
  • Task 2: Binary Numbers Convert these binary numbers to decimal numbers: Binary
  • Bits and Bytes •Each zero or one is called a bit (binary digit) •Bits are often stored in groups of eight, which can represent numbers from 0 to 255 •A group of eight bits is called a byte •Binary code can also represent characters •A byte is often used to represent a single character of text •The numbers 0 to 255 can encode all the upper- and lower-case letters of a keyboard Binary
  • Digital Information Binary
  • Task 3: Secret Codes Convert the binary to reveal the secret message Binary
  • Task 4: Binary Name Use the conversion chart to convert your first name into binary! Write each letter of your first name going down rather than across. Binary
  • Computer Speed The speed of a computer depends on the number of bits or 1’s and 0’s it can process at once. A 32-bit computer can process 32-bit numbers in one operation, while a 16-bit computer must break 32-bit numbers down into smaller pieces, making it slower. Binary
  • Plenary: Binary Game Play the ‘Binary Game’. It is in the Getting Technical folder in Groupwork. Binary
  • Keywords  Be able to convert binary to decimal numbers  Understand how binary represents numbers and text  Be able to convert binary to characters  Understand how a computers speed is calculated Objectives  Binary  Bit  Byte  Character  Decimal  Base 10  Convert  1 and 0     Binary