1. Computer & Electronics Engineering

2. Objectives Understand Digital Logic Gates Construct & Simulate Digital Logic Circuits on the Computer

3. Switches for Light Control Page 13

4. Logic AND 00 10 11 01

5. AND Gate A BOUT 0 0 0 10 1 00 1 1

6. 1 0 Logic OR 0 0 1 1

7. OR Gate A BOUT 0 0 0 11 1 01 1 1

10. Automotive Reminder System Key in Ignition(K) Door Open (D) Seatbelt Disconnected(S) Headlights On (H)

11. Automotive Reminder System key AND door OR key AND seatbelt OR light AND door OR

12. Automotive Reminder System Page 15

13. Automotive Reminder System Page 17

14. How to Use Electronics Workbench

15. Page 2

17. Build and test these circuits. Try to complete Circuits 1, 3, 5 & 6. Circuit 1: Wiring Residential Switches Circuit 2:Switches as Logic Elements Circuit 3:Automobile Buzzer System Circuit 5:Integrated Circuit Form of Automobile Buzzer System Circuit 6:Binary Counter – Seven Segment Decoder Circuit 7:Two Digit Binary Counter Circuit 8:Simplified Binary Counter Circuit 9:Four Digit Binary Counter

18. Binary Count B ADecimal 0 0 0 11 1 02 1 3

19. Binary Count C B ADecimal 0 0 00 0 0 11 0 1 02 0 1 13 1 0 04 1 0 15 1 1 06 1 1 17

20. Binary D C B ADecimalD C B ADecimal 0 0 01 0 0 08 0 0 0 111 0 0 19 0 0 1 021 0 10 (A) 0 0 1 131 0 1 111 (B) 0 1 0 041 1 0 012 ( C) 0 1 51 1 0 113 (D) 0 1 1 061 1 1 014 (E) 0 1 1 171 1 15 (F)

21. Binary Coded Decimal (BCD) D C B ADecimal 0 0 0 0 0 0 11 0 0 1 02 0 0 1 13 0 1 0 04 0 1 5 0 1 1 06 0 1 1 17 1 0 0 08 9

22. 7 Segment Displays CodeSegmentsDigit a b c d e f g Display a “2”