Basic Flashcards

General topic for this DL

What is a logic gate?: A logic gate is a digital circuit building block that performs a Boolean operation on binary inputs to produce one output.
What is an AND gate?: AND gate: output is 1 only when ALL inputs are 1. Truth: 0+0=0, 1+0=0, 0+1=0, 1+1=1.
What is an OR gate?: OR gate: output is 1 when ANY input is 1. Output is 0 only when all inputs are 0.
What is a NOT gate?: NOT gate (inverter): outputs the opposite of the input. Input 0 → Output 1, Input 1 → Output 0.
What is a NAND gate?: NAND = AND + NOT. Output is 0 only when all inputs are 1. It is a universal gate — any circuit can be built from NAND alone.
What is an XOR gate?: XOR gate: output is 1 when inputs are DIFFERENT. 0⊕1=1, 1⊕0=1, 0⊕0=0, 1⊕1=0.
What is a flip-flop?: A flip-flop is a bistable circuit storing one bit (0 or 1). It is the fundamental unit of memory, registers, and counters.
What is binary?: Binary is base-2 number system using 0 and 1. All digital data is stored in binary. Example: 1010₂ = 10₁₀.
What is a half adder?: A half adder adds two 1-bit numbers, producing a Sum (XOR) and Carry (AND). It cannot handle incoming carry.
What is a full adder?: A full adder adds three 1-bit inputs (A, B, Carry-in) producing Sum and Carry-out. Used to build multi-bit adders.
What is a logic gate?: A logic gate is a digital circuit building block that performs a Boolean operation on binary inputs to produce one output.
What is an AND gate?: AND gate: output is 1 only when ALL inputs are 1. Truth: 0+0=0, 1+0=0, 0+1=0, 1+1=1.
What is an OR gate?: OR gate: output is 1 when ANY input is 1. Output is 0 only when all inputs are 0.
What is a NOT gate?: NOT gate (inverter): outputs the opposite of the input. Input 0 → Output 1, Input 1 → Output 0.
What is a NAND gate?: NAND = AND + NOT. Output is 0 only when all inputs are 1. It is a universal gate — any circuit can be built from NAND alone.
What is an XOR gate?: XOR gate: output is 1 when inputs are DIFFERENT. 0⊕1=1, 1⊕0=1, 0⊕0=0, 1⊕1=0.
What is a flip-flop?: A flip-flop is a bistable circuit storing one bit (0 or 1). It is the fundamental unit of memory, registers, and counters.
What is binary?: Binary is base-2 number system using 0 and 1. All digital data is stored in binary. Example: 1010₂ = 10₁₀.
What is a half adder?: A half adder adds two 1-bit numbers, producing a Sum (XOR) and Carry (AND). It cannot handle incoming carry.
What is a full adder?: A full adder adds three 1-bit inputs (A, B, Carry-in) producing Sum and Carry-out. Used to build multi-bit adders.