1.4.3

• de morgans law

  not (a and b) is the same as (not a) or (not b)
• distribution

  A AND (B OR C) is the same as (A AND B) OR (A AND C)
• Association

  A OR (B OR C) is the same as (A OR B) OR C which is the same as A OR B OR C
• Absorption

  X OR (X AND Y) is the same as X
• flip flop


  logic circuit that can store one bit and flip it between 0 and 1

  has two inputs and two outputs

  a computers internal clock synchronizes the state changes facilitated by flip flop circuits
• D-type flip flop


  1 bit memory device that is enabled and disabled by clock signal

  used in memory circuits and shift registers

  shift registers handle signals that arrive in parallel lines at different times