145) To build a mod-19 counter the number of flip-flops required is

146) The stable multi-vibrator has

147) How many bits are required to encode all twenty six letters, ten symbols, and ten numerals ?

148) The functional difference between S-R flip-flop and J-K flip-flop is that J-K flip-flop

149) In a positive edge triggered JK flip-flop, a low J and low K produces