Logical and Binary Systems, ANDOR, NAND-NOR Logic, Truth tables, Realizations Logical and Binary Systems ● Digital circuits process signals that contain just two levels/states ○ Logic “0” ■ Logic “1” represents a higher voltage ■ Typically referred to as a HIGH value ○ Logic “1” ■ Logic “0” represents a lower voltage ■ Typically referred to as a LOW value ● Each discrete voltage levels are referred to as Binary Digits or Binary BITS ● Binary number system is a Base-2 number system ○ Follows the same rules as other mathematical systems like Base-10 ○ For example: ■ Instead of powers of ten (10????) binary numbers use power of two (2????) ANDOR ● This acronym represents two logic gates ○ AND ○ OR ● AND gate ○ If 0 is called