computer sciense

• Humans process a large amount of data on a daily basis
• When we have a conversation with someone, we process approximately 60 bits of information per second
• Our brain is designed to process a maximum of about 120 bits per second
• That's why it is so difficult to listen to two people talk to us at once
• Analogue data


  Everything we see, hear, feel and smell is a continuous stream of analogue data to our senses
• The components that process data in a computer are made up of very small logic gates.

  These gates cannot process analogue data, they can only process digital data. This data

  is stored in registers.Digital data

  is discrete data that only has two values, 1 and 0. Any data that we want a computer to

  process must be converted into digital data. This type of data is also called binary data.
• Logic gates

  The components that process data in a computer
• Logic gates cannot process analogue data, they can only process digital data
• Digital data

  Discrete data that only has two values, 1 and 0
• Any data that we want a computer to process must be converted into digital data
• Binary data


  Another term for digital data
• Digital data is stored in registers
• Benefits of using hexadecimal rather than binary for a programmer

  • Hexadecimal is a shorter way of representing binary, so it takes up less space on the computer screen or piece of paper
  • Hexadecimal is easier for a programmer to read, write and understand
  • Hexadecimal is easier to debug and locate errors in data
• It is much easier to see that the data does not match, and the programmer can identify that an error has occurred