Digital Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 88 - 92 of 271

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Question 88

Digital Circuits
Memory and I-O Interfacing

Appeared in Year: 2005

Question

MCQ▾

What memory address range is NOT represents by chip # 1 and chip # 2 in the figure to in this figure are the address lines.

The Combinational Circuit Which Have Address Lines and Chips

Choices

Choice (4)Response

a.

0100 - 02FF

b.

1500 - 16FF

c.

F900 - FAFF

d.

F800 - F9FF

Question 89

Digital Circuits
Programming

Appeared in Year: 2013

Question

MCQ▾

For 8085 microprocessor, the following program is executed.

  1. MVIA, 05H;
  2. MVIB, 05H;
  3. PTR:ADDB;
  4. DCRB;
  5. JNZPTR;
  6. ADI03H;
  7. HLT;

At the end of program, accumulator contains

Choices

Choice (4)Response

a.

20H

b.

23H

c.

17H

d.

05H

Question 90

Digital Circuits
Sample and Hold Circuits, ADCs and DACs

Appeared in Year: 2012

Question

MCQ▾

The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is

Choices

Choice (4)Response

a.

6

b.

4

c.

10

d.

8

Question 91

Digital Circuits
Memory and I-O Interfacing

Appeared in Year: 1998

Question

MCQ▾

The instruction used to set the carry flag in a computer can be classified as,

Choices

Choice (4)Response

a.

Arithmetic

b.

Logical

c.

Program control

d.

Data transfer

Question 92

Digital Circuits
Latches and Flip-Flops

Appeared in Year: 2011

Question

MCQ▾

When the output Y in the circuit below is “1” , it implies that data has

The Logic Circuit Consisting D Flip-Flops & an and Gate

Choices

Choice (4)Response

a.

Changed from “0” to “1”

b.

Changed from “1” to “0”

c.

Changed in either direction

d.

Not changed

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