Computing Comp 1

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  • Created by: james
  • Created on: 04-04-13 08:02

COMPUTING UNIT 1 NOTES

Chapter 5: Data Representation

Binary and hexadecimal numbers

  • What is binary addition?
  • What is binary multiplication?
  • What is two's complement?
  • Waht is hexadeciamal?
  • What are real numbers?

Character coding schemes

  • What are the two character coding schemes?
  • What are the differences between the two character coding schemes?
  • What are the four ways a computer checks for binary errors?
  • Explain how each one works
  • State the purpose of Gray code and its advantages

Bitmapped and Vector graphics

  • Define a pixcel
  • Define a bitmap
  • Explain the steps of how an image is stored on the computer
  • Define resolution
  • Define colour depth
  • Define Vector graphics
  • What are the advantages and disadvantages

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