Data & Information

Descripción

AS - Level Information Technology Mapa Mental sobre Data & Information, creado por Calum_Weeks el 10/11/2015.
Calum_Weeks
Mapa Mental por Calum_Weeks, actualizado hace más de 1 año
Calum_Weeks
Creado por Calum_Weeks hace alrededor de 9 años
154
3

Resumen del Recurso

Data & Information
  1. What is data?
    1. RAW Material
      1. meaning less details as lack relevance
        1. Have no context
        2. Forms of Data
          1. Numbers
            1. Words
              1. Images
                1. Sounds
                2. How can data arise
                  1. Direct Source
                    1. Counting cars as they enter a car park
                    2. Purpose for which it is collected
                      1. Indirect data
                        1. Collected for one purpose and used for another
                          1. EXAMPLE: Sales data from credit card used for promotional
                      2. Why Code Data
                        1. Less effort to type
                          1. More data can appear on screen
                            1. Takes up less storage
                              1. Easier to check the code is accurate
                              2. Examples of Coded Data
                                1. dd/mm/yy
                                  1. M or F
                                    1. GB, AU, CH, ES
                                    2. Encoding
                                      1. Putting data into a specified format that allows effective transmission or storage
                                        1. Data is converted into binary to allow the computer to understand it
                                          1. ASCII Encoding - where keyboard characters are changed into Binary. A = 01000001
                                          2. Why encode Data?
                                            1. To compress Data
                                              1. Makes it smaller and occupy less space
                                              2. Enable a file produced in one software package to be read by someone who does not have that software package on their computer
                                              3. Types of Encoding
                                                1. Images
                                                  1. GIF
                                                    1. JPG
                                                      1. BMP
                                                        1. PNG
                                                        2. Sound
                                                          1. WAV
                                                            1. MP3
                                                              1. WMA
                                                            2. Difference between Data & Information
                                                              1. Data is raw values put into, stored and processed by a system
                                                                1. Information is produced as data with a context.
                                                                2. What is information?
                                                                  1. Information is processed data
                                                                    1. Data that has been
                                                                      1. Processed
                                                                        1. Contextualised
                                                                          1. Organised in the same way
                                                                        2. Quality of information
                                                                          1. Accuracy
                                                                            1. Information to be easily understood
                                                                              1. Relevance
                                                                                1. Up to date
                                                                                2. Why keep data up to date?
                                                                                  1. Data Protection
                                                                                    1. Accurate Predictions
                                                                                      1. Accurate analysis of Data
                                                                                      Mostrar resumen completo Ocultar resumen completo

                                                                                      Similar

                                                                                      The Internet
                                                                                      Gee_0599
                                                                                      Flash Cards Networks
                                                                                      JJ Pro Wrestler
                                                                                      Databases Topic 2
                                                                                      jaydeeees
                                                                                      Software testing strategies: Summary
                                                                                      harrymt
                                                                                      CCNA Security 210-260 IINS - Exam 3
                                                                                      Mike M
                                                                                      Types and Components of Computer Systems
                                                                                      Jess Peason
                                                                                      Input Devices
                                                                                      Jess Peason
                                                                                      Output Devices
                                                                                      Jess Peason
                                                                                      Networks
                                                                                      Will8324
                                                                                      General ICT Quiz
                                                                                      leahshaw
                                                                                      ICT Revison Flash Cards
                                                                                      Arun Johal