1. Slide Show A Short Note For Lecturer A Short Note For Lecturer Institute: Khanjahan Ali College, Bagerhat Subject: Computer Education (Theoretical) Class: Higher Secondary, 1st Year Chapter: 4, Part 2, Digital Logic Font: Sutonny MJ, Arial, Times New Roman Slides : 5/14 Navigation: (→↓ Next), (  ← Previous), (Esc Close) Institute: Khanjahan Ali College, Bagerhat Subject: Computer Education (Theoretical) Class: Higher Secondary, 1st Year Chapter: 4, Part 2, Digital Logic Font: Sutonny MJ, Arial, Times New Roman Slides : 5/14 Navigation: (→↓ Next), (  ← Previous), (Esc Close) Presented By Md. Mostafizur Rahman Lecturer, Computer Education Contact No: +8801718976860, +8801915566977 E-Mail : mostafiz2000@gmail.com Presented By Md. Mostafizur Rahman Lecturer, Computer Education Contact No: +8801718976860, +8801915566977 E-Mail : mostafiz2000@gmail.com

2. NOR Gate 1 1 1+1 A B A+B A B Step 4 = 0 Resistant Input Output ABA+B 0001 0110 1010 1110 NOR Gate 1 0 1+0 A B A+B A B Step 3 = 0 Resistant Input Output ABA+B 0001 0110 1010 1110 NOR Gate 0 1 0+1 A B A+B A B Step 2 = 0 Resistant Input Output ABA+B 0001 0110 1010 1110 A B NOR Gate 0 0 0+0 A B A+B Step 1 Resistant = 1 Input Output ABA+B 0001 0110 1010 1110 Compound Gate 0 ≠ 0 Voltage

3. 1. NOR Gate  NOT Gate A B A+B ĀA = A A A A+A Ā

4. 2. NOR Gate  OR Gate A B A+B A B A B

5. 3. NOR Gate  AND Gate 3. NOR Gate  AND Gate A B A+B A B AB A B A B + AB = AB =AB