Data Encoding WJEC GCSE ICT.

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Presentation transcript:

Data Encoding WJEC GCSE ICT

Starter: Testing Existing Knowledge What do you think each of these terms stand for: M&S MATALAN PE ICT MSN GB M or F? DTV Airport S M L XL XXL HD USB

Objectives Understand what data encoding is. Know why we use data encoding. Suggest the benefits and drawbacks of data encoding .

Starter Review Why do we use acronyms in life? M&S Marks and Spencer MATALAN Matthew and Alan PE Physical Education ICT Info and Comms Technology MSN Microsoft Network GB Great Britain M or F? Male or Female DTV Airport Durham Tees Valley S M L XL XXL Small, Medium, Large…. HD High Definition USB Universal Serial Bus

Life vs. A Computer Why do we store things on a computer this way then? Computers do it because: Takes up less storage space Faster to enter / type Easier to check with validation (no spelling etc). Faster to use and send the data (smaller file sizes). THIS IS CALLED: ENCODING

Where in Society? encoding is everywhere

Benefits and Drawbacks Less storage space needed Copying data could be a bad thing! (think about MP3) Data can be easily copied / transferred Data theft? Easier / faster to back up Training needed to understand code Fast to access. Security of data

Objectives Review Understand what data encoding is. Know why we use data encoding. Suggest the benefits and drawbacks of data encoding .