## Advanced Digital Design Universities Past Papers

**Q.1 True/False**** **

- If the input of NOT gate is 1 then the output will be 0.
**b**. If both inputs of AND gate are zeros then the output will be zero.- The Octal number system contains 8 numbers i-e from 0-7.
- The Binary number system consists of 2 numbers i-e 0 and 1.
- The Hexadecimal number system contains total 16 numbers i-e from 0-F.
- Numbers having base 10 are called Decimal number system.
- NAND gate is a combination of NOT and AND gate.

**Q.2 a. **Explain Unsigned Integers.

- Convert the following binary number (101101)
_{2 }to Decimal (?)_{10}?

**Q.3 a. **Explain Fixed Point numbers.

**b**. Explain NOR gate with the help of Truth Table and block diagram.

**Q.4** Explain the NAND gate with the help of truth table and block diagram.

**Q.5 a. **If one input of an AND gate is 0 and the other is 1, what is the output value? What if both are 0 or both are 1? Explain it using Truth table.

- Explain digital systems and embedded systems.

**Q.**6 Draw the circuit diagram for the following Boolean function

f=(x+y).z

**Q.7** If one input of an OR gate is 0 and the other is 1, what is the output value? What if both are 0 or both are 1? Explain it using a Truth table

**Q.8 **Write short notes on any two of the following

- AND Gate b) OR gate c)NOT gate

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