History Lotfi Zadeh,at the University of California at Berkeley,first presented fuzzy logic in the mid- 1960's. Zadeh developed fuzzy logic as a way of processing data.Instead of requiring a data element to be either a member or non-member of a set,he introduced the idea of partial set membership. In 1974 Mamdani and Assilian used fuzzy logic to regulate a steam engine. In 1985 researchers at Bell laboratories developed the first fuzzy logic chip.History ⚫ Lotfi Zadeh, at the University of California at Berkeley, first presented fuzzy logic in the mid- 1960's. ⚫ Zadeh developed fuzzy logic as a way of processing data. Instead of requiring a data element to be either a member or non-member of a set, he introduced the idea of partial set membership. ⚫ In 1974 Mamdani and Assilian used fuzzy logic to regulate a steam engine. ⚫ In 1985 researchers at Bell laboratories developed the first fuzzy logic chip