Test: Digital Electronics - 6 - Electronics and Communication Engineering (ECE) MCQ

Which one of the following is the correct sequence of the numbers represented in the series given below?

A 4 line to 16 line decoder has

Derive the Boolean expression for the logic circuit shown below:

In floating point representation the number of bits in exponent is

Consider the following statements:

1. In the 2's complement representation, negative numbers are stored in sign magnitude form.
2. Taking 2's complement is equivalent to sign change.
3. In a 4 bit complement representation of a binary number A.
4. In the 2's complement representation the most significant bit (MSB) is zero for a positive number.

In 8085 microprocessor, an active low signal INTA is not needed from up service which of the following interrupt request?

Without any addition circuitry, an 8:1 MUX can be used to obtain.

The internal structure of PL A is similar to

Start and stop bit do not contain any information but are used in serial communication for

Which of the following parameters is not specified for digital ICs?

A binary adder has

Program counter in a digital computer

Which are the pending interrupts?

The logical expression Y = A+AB is equivalent to

Fundamental mode is another name for

A quantization error is an essential aspect of ADC

Schmitt trigger is used for wave shaping.

Assertion (A): Decoder is not a combinational circuit.

Reason (R): Every memory element of semi conductor form has a decoder.

A(A + B) =

In 8085 microprocessor, in order to enable RST 5.5, RST 6.5 and RST 7.5 interrupts, which of the following instruction are needed?

A retriggerable one shot is one which

For the K map in the given figure, the simplified expression is