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Multimedia industries

Description

KS4 ICT Mind Map on Multimedia industries, created by Matthew Stentiford on 23/04/2017.
Matthew Stentiford
Mind Map by Matthew Stentiford, updated more than 1 year ago
Matthew Stentiford
Created by Matthew Stentiford over 7 years ago
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Resource summary

Multimedia industries
  1. File storage
    1. Word document = .doc / .docs
      1. database = .mdb
        1. speadsheet = xls / .xlsx
          1. presentation = .ppt
            1. text file = .txt
              1. bitmap graphic = .bmp
                1. compressed bitmap graphic = .jpg
                  1. web page = .htm / .html
                    1. application = .exe
                    2. Data compression
                      1. Advantages
                        1. making files smaller
                          1. less storage space used + easier to transmit over a network
                          2. Text files
                            1. switching letters with characters
                              1. characters take up less space so it compresses the file size
                            2. Graphics files
                              1. can be easily compressed by a large amount as a JPEG or GIF
                              2. Video files
                                1. compare frames and send the data about the changes between them MPEG
                                2. Sound files
                                  1. common compression = MP3
                                    1. higher bit rate = higher quality but larger files
                                    2. Compressed but do not lose quality
                                    3. ZIP files
                                      1. groups of files can be compressed into one zip file (.zip)
                                    4. Web software
                                      1. issues with hosting websites
                                        1. security of the website
                                          1. Vulnerable to hacking
                                            1. firewalls can be used
                                          2. speed of response / upload speed must be good
                                            1. regular updates and reliable info is needed
                                            2. Avoid copyrighting or being offensive
                                            3. Internet browsers
                                              1. http = normal websites
                                                1. https = secure websites
                                                  1. ftp =transferring files
                                                    1. file = files on your computer
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