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Understanding Data Portability: Compression and File Types Overview

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This overview explores the importance of data compression and the software utilized for compressing and decompressing various file types. It highlights common formats such as JPEG, MPEG, GIF, TXT, CSV, RTF, MP3, MP4, MIDI, PDF, HTML, and ZIP. Detailed insights into how compression software like RAR and WinZip works to reduce file sizes are provided. Additionally, the exercise encourages practical research by comparing file sizes of different graphic formats, further enhancing understanding of data portability and management.

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Understanding Data Portability: Compression and File Types Overview

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  1. 3.2 Data Portability

  2. Overview Understand the need for data compression and software needed to compress/decompress data. Identify common file types such as jpeg, mpeg, gif, txt, csv, rtf, MP3, MP4, MIDI, pdf, html, zip.

  3. Data compression • Using special software to reduce the size of a file. The file is then compressed. At the other end it then needs decompression software to read it. • Examples of software include: • Rar • Winzip

  4. File types

  5. File types

  6. File types

  7. File types

  8. Acronyms • jpeg • mpeg • gif • txt • csv • Rtf • MP3 • MP4 • MIDI • pdf • html • Zip • ASCII

  9. Exercise Complete the table for each of the following file extensions and add in two of your own.

  10. Research • Choose one graphic • Save it as a bmp • Then save it as a jpeg • Compare how much memory each takes up

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