Answer:
Data Deduplication
Explanation:
In computing, data deduplication is a technique for eliminating duplicate copies of repeating data. This is also called single-instance storage.
Only applicable to Windows Server 2012 and newer versions, Data deduplication techniques ensure that only one unique instance of data is retained on storage media, such as disk, flash or tape.
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It had a huge impact people could use other things than bows and arrows to fight in wars.
If i remember correctly...it should be 64 MB
Hope this helps