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(Date and Month not real) Used to calculate mathematical problems
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Used to communicate with people (date and month not real)
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(Date and month not real) Used to play music
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(Date and Month not real) used to watch t.v programmes
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(Day not real) used to crack German codes
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(Date and Month not real)
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(Date and Month not real) used to browse web sites
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(Date real) Used as a computer software