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. NAND Gate A B AB A B 1  1=0 A B NOT Step 4 Input Output ABAB 0001 0101 1001 1110 NAND Gate A B AB A B 1  0=1 A B NOT Step 3 Input Output ABAB 0001 0101 1001 1110 NAND Gate A B AB A B 0  1=1 A B NOT Step 2 Input Output ABAB 0001 0101 1001 1110 NAND Gate A B AB A B 0  0=1 A B NOT Step 1 Input Output ABAB 0001 0101 1001 1110 0 ≠ 0 Voltage Compound Gate Resistant

3. 1. NAND Gate  NOT Gate A B AB Ā A A A AA A = A

4. 2. NAND Gate  AND Gate A B AB A B A B = AB

5. 3. NAND Gate  OR Gate A B AB A B A+B A B A B A B = A+B