Calculator a simple one

1-2-3 turn logic sources on than off. 4-5-6 it has 2 4bit memory slots for storing 7-8-9 input numbers. it starts 0+0 if you C-0-- press a number it loads in the first slot like 9 than it will be 9+0 and it will auto give the answer 9+0=9 it also auto switch to the 2nd slot ready for next number if 1 than it will be 9+1=10 and it switches back to the first slot it has a clear button and 9+9=18 is the highest lot of gates so its slow so turn logic source on wait for it to load than turn it off it will shift different numbers on the display when it loads and the logic source on the jk flip flop stays on

published 10 years ago