True / False A 2-input OR gate produces a high output when any of the inputs is high.

21. What is the range of outputs for an 8-bit analog-to-digital converter (ADC)? a) 0 - 255 b) 0 - 256 c) 1 - 256 d) 0 – 1023 e) 0 – 1024

1) Design a full adder using half adders and a AND gate. invertors are allowed. justify the design

Single-choice (a), (b), (c), or (d). 1. A half-adder is characterized by (a) two inputs and two outputs (c) two inputs and three outputs 2. A full-adder is characterized by (a) two inputs and two outputs (c) two inputs and three outputs 3. The inputs to a full adder are A = (b) three inputs and two outputs (d) two inputs and one output (b) three inputs and two outputs (d) two inputs and one output 1, B = 0, C = 1. The outputs are = 1, Cout = 0 (a) = 0, Cout=1 (b) (c) = 0, Cout = 0 (d) Σ = 1, Cout = 1 4. A 3-bit parallel adder can add (a) three 2-bit binary numbers (e) three bits at a time (b) two 3-bit binary numbers (d) three bits in sequence 5. To expand a 2-bit parallel adder to a 4-bit parallel adder, you must (a) use two 2-bit adders with no interconnections (b) use two 2-bit adders and connect the sum outputs of one to the bit inputs of the other (e) use four 2-bit adders with no interconnections (d) use two 2-bit adders with the carry output of one connected to the carry input…