Section Two - Data Representation

• What is the smallest measure of data?

  A bit
• Name the order of the measures of data, starting from the smallest to the largest

  Bit , Nibble , Byte , Kilobyte , Megabyte , Gigabyte , Terabyte , Petabyte
• What is binary code represented by?

  1 's and 0 's
• What do the 1s and 0s in binary code show?

  The 1 shows that electricity is flowing . The 0 shows electricity is not flowing
• What are most files (like songs and documents measured in) ?

  Kilobytes or Megabytes
• What are high definition videos and complex applications measured in?

  Gigabytes
• What is secondary storage capacity usually measured in?

  Gigabytes or Terabytes
• Ashley has downloaded some images to her computer. Each image is 300 Kilobytes. How many bits are in each image?

  2,400,000 bits

  Remember to convert to bytes first

  
• Ashley has downloaded some images and wants to copy 400 of them, with each image being 300 KB. Her USB flash drive has 0.15 GB of space left. Does she have space?

  Yes , as the images come up to a total of 0.12 GB

  
• Convert the binary number 01101011 into denary

  107