Digital Design Interview Questions - All in 1
1. How do you convert a XOR gate into a buffer and a inverter (Use only one XOR gate for each)?
2. Implement an 2-input AND gate using a 2x1 mux.
3. What is a multiplexer?
A multiplexer is a combinational circuit which selects one of many input signals and directs to the only output.
4. What is a ring counter?
A ring counter is a type of counter composed of a circular shift register. The output of the last shift register is fed to the input of the first register. For example, in a 4-register counter, with initial register values of 1100, the repeating pattern is: 1100, 0110, 0011, 1001, 1100, so on.
5. Compare and Contrast Synchronous and Asynchronous reset.
Synchronous reset logic will synthesize to smaller flip-flops, particularly if the reset is gated with the logic generating the d-input. But in such a case, the combinational logic gate count grows, so the overall gate count savings may not be that significant. The clock works as a filter for small reset glitches; however, if these glitches occur near the active clock edge, the Flip-flop could go metastable. In some designs, the reset must be generated by a set of internal conditions. A synchronous reset is recommended for these types of designs because it will filter the logic equation glitches between clock.
Problem with synchronous resets is that the synthesis tool cannot easily distinguish the reset signal from any other data signal. Synchronous resets may need a pulse stretcher to guarantee a reset pulse width wide enough to ensure reset is present during an active edge of the clock, if you have a gated clock to save power, the clock may be disabled coincident with the assertion of reset. Only an asynchronous reset will work in this situation, as the reset might be removed prior to the resumption of the clock. Designs that are pushing the limit for data path timing, can not afford to have added gates and additional net delays in the data path due to logic inserted to handle synchronous resets.
Asynchronous reset: The major problem with asynchronous resets is the reset release, also called reset removal. Using an asynchronous reset, the designer is guaranteed not to have the reset added to the data path. Another advantage favoring asynchronous resets is that the circuit can be reset with or without a clock present. Ensure that the release of the reset can occur within one clock period else if the release of the reset occurred on or near a clock edge then flip-flops may go into metastable state.
6. What is a Johnson counter?
Johnson counter connects the complement of the output of the last shift register to its input and circulates a stream of ones followed by zeros around the ring. For example, in a 4-register counter, the repeating pattern is: 0000, 1000, 1100, 1110, 1111, 0111, 0011, 0001, so on.
7. An assembly line has 3 fail safe sensors and one emergency shutdown switch.The line should keep moving unless any of the following conditions arise:
(1) If the emergency switch is pressed
(2) If the senor1 and sensor2 are activated at the same time.
(3) If sensor 2 and sensor3 are activated at the same time.
(4) If all the sensors are activated at the same time
Suppose a combinational circuit for above case is to be implemented only with NAND Gates. How many minimum number of 2 input NAND gates are required?
Solve it out!
8. In a 4-bit Johnson counter How many unused states are present?
4-bit Johnson counter: 0000, 1000, 1100, 1110, 1111, 0111, 0011, 0001, 0000.
8 unused states are present.
9. Design a 3 input NAND gate using minimum number of 2 input NAND gates.
10. How can you convert a JK flip-flop to a D flip-flop?
11. What are the differences between a flip-flop and a latch?
Flip-flops are edge-sensitive devices where as latches are level sensitive devices.
Flip-flops are immune to glitches where are latches are sensitive to glitches.
Latches require less number of gates (and hence less power) than flip-flops.
Latches are faster than flip-flops.
12. What is the difference between Mealy and Moore FSM?
Mealy FSM uses only input actions, i.e. output depends on input and state. The use of a Mealy FSM leads often to a reduction of the number of states.
Moore FSM uses only entry actions, i.e. output depends only on the state. The advantage of the Moore model is a simplification of the behavior.
13. What are various types of state encoding techniques? Explain them.
One-Hot encoding: Each state is represented by a bit flip-flop). If there are four states then it requires four bits (four flip-flops) to represent the current state. The valid state values are 1000, 0100, 0010, and 0001. If the value is 0100, then it means second state is the current state.
One-Cold encoding: Same as one-hot encoding except that '0' is the valid value. If there are four states then it requires four bits (four flip-flops) to represent the current state. The valid state values are 0111, 1011, 1101, and 1110.
Binary encoding: Each state is represented by a binary code. A FSM having '2 power N' states requires only N flip-flops.
Gray encoding: Each state is represented by a Gray code. A FSM having '2 power N' states requires only N flip-flops.
14. Define Clock Skew , Negative Clock Skew, Positive Clock Skew.
Clock skew is a phenomenon in synchronous circuits in which the clock signal (sent from the clock circuit) arrives at different components at different times. This can be caused by many different things, such as wire-interconnect length, temperature variations, variation in intermediate devices, capacitive coupling, material imperfections, and differences in input capacitance on the clock inputs of devices using the clock.
There are two types of clock skew: negative skew and positive skew. Positive skew occurs when the clock reaches the receiving register later than it reaches the register sending data to the receiving register. Negative skew is the opposite: the receiving register gets the clock earlier than the sending register.
15. Give the transistor level circuit of a CMOS NAND gate.
16. Design a 4-bit comparator circuit.
17. Design a Transmission Gate based XOR. Now, how do you convert it to XNOR (without inverting the output)?
18. Define Metastability.
If there are setup and hold time violations in any sequential circuit, it enters a state where its output is unpredictable, this state is known as metastable state or quasi stable state, at the end of metastable state, the flip-flop settles down to either logic high or logic low. This whole process is known as metastability.
19. Compare and contrast between 1's complement and 2's complement notation.
The only advantage of 1's complement is that it can be calculated easily, just by changing 0's into 1's and 1's into 0's. The 2's complement is calculated in two ways, (i) add 1 to the 1's complement of the number, and (ii) leave all the leading 0s in the least significant positions and keep first 1 unchanged, and then change 0's into 1's and 1's into 0's.
The advantages of 2's complement over 1's complement are:
(i) For subtraction with complements, 2's complement requires only one addition operation, where as for 1's complement requires two addition operations if there is an end carry.
(ii) 1's complement has two arithmetic zeros, all 0's and all 1's.
20. Give the transistor level circuit of CMOS, nMOS, pMOS, and TTL inverter gate.
21. What are set up time and hold time constraints?
Set up time is the amount of time before the clock edge that the input signal needs to be stable to guarantee it is accepted properly on the clock edge.
Hold time is the amount of time after the clock edge that same input signal has to be held before changing it to make sure it is sensed properly at the clock edge.
Whenever there are setup and hold time violations in any flip-flop, it enters a state where its output is unpredictable, which is known as as metastable state or quasi stable state. At the end of metastable state, the flip-flop settles down to either logic high or logic low. This whole process is known as metastability.
22. Give a circuit to divide frequency of clock cycle by two.
23. Design a divide-by-3 sequential circuit with 50% duty circle.
24. Explain different types of adder circuits.
25. Give two ways of converting a two input NAND gate to an inverter.
26. Draw a Transmission Gate-based D-Latch.
27. Design a FSM which detects the sequence 10101 from a serial line without overlapping.
28. Design a FSM which detects the sequence 10101 from a serial line with overlapping.
29. Give the design of 8x1 multiplexer using 2x1 multiplexers.
30. Design a counter which counts from 1 to 10 ( Resets to 1, after 10 ).
31. Design 2 input AND, OR, and EXOR gates using 2 input NAND gate.
32. Design a circuit which doubles the frequency of a given input clock signal.
33. Implement a D-latch using 2x1 multiplexer(s).
34. Give the excitation table of a JK flip-flop.
35. Give the Binary, Hexadecimal, BCD, and Excess-3 code for decimal 14.
14:
Binary: 1110
Hexadecimal: E
BCD: 0001 0100
Excess-3: 10001
36. What is race condition?
37. Give 1's and 2's complement of 19.
19: 10011
1's complement: 01100
2's complement: 01101
38. Design a 3:6 decoder.
39. If A*B=C and C*A=B then, what is the Boolean operator * ?
* is Exclusive-OR.
40. Design a 3 bit Gray Counter.
41. Expand the following: PLA, PAL, CPLD, FPGA.
PLA - Programmable Logic Array
PAL - Programmable Array Logic
CPLD - Complex Programmable Logic Device
FPGA - Field-Programmable Gate Array
42. Implement the functions: X = A'BC + ABC + A'B'C' and Y = ABC + AB'C using a PLA.
43. What are PLA and PAL? Give the differences between them.
Programmable Logic Array is a programmable device used to implement combinational logic circuits. The PLA has a set of programmable AND planes, which link to a set of programmable OR planes, which can then be conditionally complemented to produce an output.
PAL is programmable array logic, like PLA, it also has a wide, programmable AND plane. Unlike a PLA, the OR plane is fixed, limiting the number of terms that can be ORed together.
Due to fixed OR plane PAL allows extra space, which is used for other basic logic devices, such as multiplexers, exclusive-ORs, and latches. Most importantly, clocked elements, typically flip-flops, could be included in PALs. PALs are also extremely fast.
44. What is LUT?
LUT - Look-Up Table. An n-bit look-up table can be implemented with a multiplexer whose select lines are the inputs of the LUT and whose inputs are constants. An n-bit LUT can encode any n-input Boolean function by modeling such functions as truth tables. This is an efficient way of encoding Boolean logic functions, and LUTs with 4-6 bits of input are in fact the key component of modern FPGAs.
45. What is the significance of FPGAs in modern day electronics? (Applications of FPGA.)
46. What are the differences between CPLD and FPGA.
47. Compare and contrast FPGA and ASIC digital designing.
48. Give True or False.
(a) CPLD consumes less power per gate when compared to FPGA.
(b) CPLD has more complexity than FPGA
(c) FPGA design is slower than corresponding ASIC design.
(d) FPGA can be used to verify the design before making a ASIC.
(e) PALs have programmable OR plane.
(f) FPGA designs are cheaper than corresponding ASIC, irrespective of design complexity.
(a) False
(b) False
(c) True
(d) True
(e) False
(f) False
49. Arrange the following in the increasing order of their complexity: FPGA,PLA,CPLD,PAL.
Increasing order of complexity: PLA, PAL, CPLD, FPGA.
50. Give the FPGA digital design cycle.
51. What is DeMorgan's theorem?
For N variables, DeMorgan’s theorems are expressed in the following formulas:
(ABC..N)' = A' + B' + C' + ... + N' -- The complement of the product is equivalent to the sum of the complements.
(A + B + C + ... + N)' = A'B'C'...N' -- The complement of the sum is equivalent to the product of the complements.
This relationship so induced is called DeMorgan's duality.
52. F'(A, B, C, D) = C'D + ABC' + ABCD + D. Express F in Product of Sum form.
Complementing both sides and applying DeMorgan's Theorem:
F(A, B, C, D) = (C + D')(A' + B' + C)(A' + B' + C' + D')(D')
53. How many squares/cells will be present in the k-map of F(A, B, C)?
F(A, B, C) has three variables/inputs.
Therefore, number of squares/cells in k-map of F = 2(Number of variables) = 23 = 8.
54. Simplify F(A, B, C, D) = S ( 0, 1, 4, 5, 7, 8, 9, 12, 13)
The four variable k-map of the given expression is:
The grouping is also shown in the diagram. Hence we get,
F(A, B, C, D) = C' + A'BD
55. Simplify F(A, B, C) = S (0, 2, 4, 5, 6) into Product of Sums.
The three variable k-map of the given expression is:
The 0's are grouped to get the F'.
F' = A'C + BC
Complementing both sides and using DeMorgan's theorem we get F,
F = (A + C')(B' + C')
56. The simplified expression obtained by using k-map method is unique. True or False. Explain your answer.
False. The simplest form obtained is not necessarily unique as grouping can be made in different ways.
57. Give the characteristic tables of RS, JK, D and T flip-flops.
RS flip-flop.
JK flip-flop
D flip-flop
T flip-flop
58. Give excitation tables of RS, JK, D and T flip-flops.
RS flip-flop.
JK flip-flop
D flip-flop
T flip-flop
59. Design a BCD counter with JK flip-flops
60. Design a counter with the following binary sequence 0, 1, 9, 3, 2, 8, 4 and repeat. Use T flip-flops.
2. Implement an 2-input AND gate using a 2x1 mux.
3. What is a multiplexer?
A multiplexer is a combinational circuit which selects one of many input signals and directs to the only output.
4. What is a ring counter?
A ring counter is a type of counter composed of a circular shift register. The output of the last shift register is fed to the input of the first register. For example, in a 4-register counter, with initial register values of 1100, the repeating pattern is: 1100, 0110, 0011, 1001, 1100, so on.
5. Compare and Contrast Synchronous and Asynchronous reset.
Synchronous reset logic will synthesize to smaller flip-flops, particularly if the reset is gated with the logic generating the d-input. But in such a case, the combinational logic gate count grows, so the overall gate count savings may not be that significant. The clock works as a filter for small reset glitches; however, if these glitches occur near the active clock edge, the Flip-flop could go metastable. In some designs, the reset must be generated by a set of internal conditions. A synchronous reset is recommended for these types of designs because it will filter the logic equation glitches between clock.
Problem with synchronous resets is that the synthesis tool cannot easily distinguish the reset signal from any other data signal. Synchronous resets may need a pulse stretcher to guarantee a reset pulse width wide enough to ensure reset is present during an active edge of the clock, if you have a gated clock to save power, the clock may be disabled coincident with the assertion of reset. Only an asynchronous reset will work in this situation, as the reset might be removed prior to the resumption of the clock. Designs that are pushing the limit for data path timing, can not afford to have added gates and additional net delays in the data path due to logic inserted to handle synchronous resets.
Asynchronous reset: The major problem with asynchronous resets is the reset release, also called reset removal. Using an asynchronous reset, the designer is guaranteed not to have the reset added to the data path. Another advantage favoring asynchronous resets is that the circuit can be reset with or without a clock present. Ensure that the release of the reset can occur within one clock period else if the release of the reset occurred on or near a clock edge then flip-flops may go into metastable state.
6. What is a Johnson counter?
Johnson counter connects the complement of the output of the last shift register to its input and circulates a stream of ones followed by zeros around the ring. For example, in a 4-register counter, the repeating pattern is: 0000, 1000, 1100, 1110, 1111, 0111, 0011, 0001, so on.
7. An assembly line has 3 fail safe sensors and one emergency shutdown switch.The line should keep moving unless any of the following conditions arise:
(1) If the emergency switch is pressed
(2) If the senor1 and sensor2 are activated at the same time.
(3) If sensor 2 and sensor3 are activated at the same time.
(4) If all the sensors are activated at the same time
Suppose a combinational circuit for above case is to be implemented only with NAND Gates. How many minimum number of 2 input NAND gates are required?
Solve it out!
8. In a 4-bit Johnson counter How many unused states are present?
4-bit Johnson counter: 0000, 1000, 1100, 1110, 1111, 0111, 0011, 0001, 0000.
8 unused states are present.
9. Design a 3 input NAND gate using minimum number of 2 input NAND gates.
10. How can you convert a JK flip-flop to a D flip-flop?
11. What are the differences between a flip-flop and a latch?
Flip-flops are edge-sensitive devices where as latches are level sensitive devices.
Flip-flops are immune to glitches where are latches are sensitive to glitches.
Latches require less number of gates (and hence less power) than flip-flops.
Latches are faster than flip-flops.
12. What is the difference between Mealy and Moore FSM?
Mealy FSM uses only input actions, i.e. output depends on input and state. The use of a Mealy FSM leads often to a reduction of the number of states.
Moore FSM uses only entry actions, i.e. output depends only on the state. The advantage of the Moore model is a simplification of the behavior.
13. What are various types of state encoding techniques? Explain them.
One-Hot encoding: Each state is represented by a bit flip-flop). If there are four states then it requires four bits (four flip-flops) to represent the current state. The valid state values are 1000, 0100, 0010, and 0001. If the value is 0100, then it means second state is the current state.
One-Cold encoding: Same as one-hot encoding except that '0' is the valid value. If there are four states then it requires four bits (four flip-flops) to represent the current state. The valid state values are 0111, 1011, 1101, and 1110.
Binary encoding: Each state is represented by a binary code. A FSM having '2 power N' states requires only N flip-flops.
Gray encoding: Each state is represented by a Gray code. A FSM having '2 power N' states requires only N flip-flops.
14. Define Clock Skew , Negative Clock Skew, Positive Clock Skew.
Clock skew is a phenomenon in synchronous circuits in which the clock signal (sent from the clock circuit) arrives at different components at different times. This can be caused by many different things, such as wire-interconnect length, temperature variations, variation in intermediate devices, capacitive coupling, material imperfections, and differences in input capacitance on the clock inputs of devices using the clock.
There are two types of clock skew: negative skew and positive skew. Positive skew occurs when the clock reaches the receiving register later than it reaches the register sending data to the receiving register. Negative skew is the opposite: the receiving register gets the clock earlier than the sending register.
15. Give the transistor level circuit of a CMOS NAND gate.
16. Design a 4-bit comparator circuit.
17. Design a Transmission Gate based XOR. Now, how do you convert it to XNOR (without inverting the output)?
18. Define Metastability.
If there are setup and hold time violations in any sequential circuit, it enters a state where its output is unpredictable, this state is known as metastable state or quasi stable state, at the end of metastable state, the flip-flop settles down to either logic high or logic low. This whole process is known as metastability.
19. Compare and contrast between 1's complement and 2's complement notation.
The only advantage of 1's complement is that it can be calculated easily, just by changing 0's into 1's and 1's into 0's. The 2's complement is calculated in two ways, (i) add 1 to the 1's complement of the number, and (ii) leave all the leading 0s in the least significant positions and keep first 1 unchanged, and then change 0's into 1's and 1's into 0's.
The advantages of 2's complement over 1's complement are:
(i) For subtraction with complements, 2's complement requires only one addition operation, where as for 1's complement requires two addition operations if there is an end carry.
(ii) 1's complement has two arithmetic zeros, all 0's and all 1's.
20. Give the transistor level circuit of CMOS, nMOS, pMOS, and TTL inverter gate.
21. What are set up time and hold time constraints?
Set up time is the amount of time before the clock edge that the input signal needs to be stable to guarantee it is accepted properly on the clock edge.
Hold time is the amount of time after the clock edge that same input signal has to be held before changing it to make sure it is sensed properly at the clock edge.
Whenever there are setup and hold time violations in any flip-flop, it enters a state where its output is unpredictable, which is known as as metastable state or quasi stable state. At the end of metastable state, the flip-flop settles down to either logic high or logic low. This whole process is known as metastability.
22. Give a circuit to divide frequency of clock cycle by two.
23. Design a divide-by-3 sequential circuit with 50% duty circle.
24. Explain different types of adder circuits.
25. Give two ways of converting a two input NAND gate to an inverter.
26. Draw a Transmission Gate-based D-Latch.
27. Design a FSM which detects the sequence 10101 from a serial line without overlapping.
28. Design a FSM which detects the sequence 10101 from a serial line with overlapping.
29. Give the design of 8x1 multiplexer using 2x1 multiplexers.
30. Design a counter which counts from 1 to 10 ( Resets to 1, after 10 ).
31. Design 2 input AND, OR, and EXOR gates using 2 input NAND gate.
32. Design a circuit which doubles the frequency of a given input clock signal.
33. Implement a D-latch using 2x1 multiplexer(s).
34. Give the excitation table of a JK flip-flop.
35. Give the Binary, Hexadecimal, BCD, and Excess-3 code for decimal 14.
14:
Binary: 1110
Hexadecimal: E
BCD: 0001 0100
Excess-3: 10001
36. What is race condition?
37. Give 1's and 2's complement of 19.
19: 10011
1's complement: 01100
2's complement: 01101
38. Design a 3:6 decoder.
39. If A*B=C and C*A=B then, what is the Boolean operator * ?
* is Exclusive-OR.
40. Design a 3 bit Gray Counter.
41. Expand the following: PLA, PAL, CPLD, FPGA.
PLA - Programmable Logic Array
PAL - Programmable Array Logic
CPLD - Complex Programmable Logic Device
FPGA - Field-Programmable Gate Array
42. Implement the functions: X = A'BC + ABC + A'B'C' and Y = ABC + AB'C using a PLA.
43. What are PLA and PAL? Give the differences between them.
Programmable Logic Array is a programmable device used to implement combinational logic circuits. The PLA has a set of programmable AND planes, which link to a set of programmable OR planes, which can then be conditionally complemented to produce an output.
PAL is programmable array logic, like PLA, it also has a wide, programmable AND plane. Unlike a PLA, the OR plane is fixed, limiting the number of terms that can be ORed together.
Due to fixed OR plane PAL allows extra space, which is used for other basic logic devices, such as multiplexers, exclusive-ORs, and latches. Most importantly, clocked elements, typically flip-flops, could be included in PALs. PALs are also extremely fast.
44. What is LUT?
LUT - Look-Up Table. An n-bit look-up table can be implemented with a multiplexer whose select lines are the inputs of the LUT and whose inputs are constants. An n-bit LUT can encode any n-input Boolean function by modeling such functions as truth tables. This is an efficient way of encoding Boolean logic functions, and LUTs with 4-6 bits of input are in fact the key component of modern FPGAs.
45. What is the significance of FPGAs in modern day electronics? (Applications of FPGA.)
- ASIC prototyping: Due to high cost of ASIC chips, the logic of the application is first verified by dumping HDL code in a FPGA. This helps for faster and cheaper testing. Once the logic is verified then they are made into ASICs.
- Very useful in applications that can make use of the massive parallelism offered by their architecture. Example: code breaking, in particular brute-force attack, of cryptographic algorithms.
- FPGAs are sued for computational kernels such as FFT or Convolution instead of a microprocessor.
- Applications include digital signal processing, software-defined radio, aerospace and defense systems, medical imaging, computer vision, speech recognition, cryptography, bio-informatics, computer hardware emulation and a growing range of other areas.
46. What are the differences between CPLD and FPGA.
47. Compare and contrast FPGA and ASIC digital designing.
48. Give True or False.
(a) CPLD consumes less power per gate when compared to FPGA.
(b) CPLD has more complexity than FPGA
(c) FPGA design is slower than corresponding ASIC design.
(d) FPGA can be used to verify the design before making a ASIC.
(e) PALs have programmable OR plane.
(f) FPGA designs are cheaper than corresponding ASIC, irrespective of design complexity.
(a) False
(b) False
(c) True
(d) True
(e) False
(f) False
49. Arrange the following in the increasing order of their complexity: FPGA,PLA,CPLD,PAL.
Increasing order of complexity: PLA, PAL, CPLD, FPGA.
50. Give the FPGA digital design cycle.
51. What is DeMorgan's theorem?
For N variables, DeMorgan’s theorems are expressed in the following formulas:
(ABC..N)' = A' + B' + C' + ... + N' -- The complement of the product is equivalent to the sum of the complements.
(A + B + C + ... + N)' = A'B'C'...N' -- The complement of the sum is equivalent to the product of the complements.
This relationship so induced is called DeMorgan's duality.
52. F'(A, B, C, D) = C'D + ABC' + ABCD + D. Express F in Product of Sum form.
Complementing both sides and applying DeMorgan's Theorem:
F(A, B, C, D) = (C + D')(A' + B' + C)(A' + B' + C' + D')(D')
53. How many squares/cells will be present in the k-map of F(A, B, C)?
F(A, B, C) has three variables/inputs.
Therefore, number of squares/cells in k-map of F = 2(Number of variables) = 23 = 8.
54. Simplify F(A, B, C, D) = S ( 0, 1, 4, 5, 7, 8, 9, 12, 13)
The four variable k-map of the given expression is:
The grouping is also shown in the diagram. Hence we get,
F(A, B, C, D) = C' + A'BD
55. Simplify F(A, B, C) = S (0, 2, 4, 5, 6) into Product of Sums.
The three variable k-map of the given expression is:
The 0's are grouped to get the F'.
F' = A'C + BC
Complementing both sides and using DeMorgan's theorem we get F,
F = (A + C')(B' + C')
56. The simplified expression obtained by using k-map method is unique. True or False. Explain your answer.
False. The simplest form obtained is not necessarily unique as grouping can be made in different ways.
57. Give the characteristic tables of RS, JK, D and T flip-flops.
RS flip-flop.
S R Q(t+1)
0 0 Q(t)
0 1 0
1 0 1
1 1 ?
JK flip-flop
J K Q(t+1)
0 0 Q(t)
0 1 0
1 0 1
1 1 Q'(t)
D flip-flop
D Q(t+1)
0 0
1 1
T flip-flop
T Q(t+1)
0 Q(t)
1 Q'(t)
58. Give excitation tables of RS, JK, D and T flip-flops.
RS flip-flop.
Q(t) Q(t+1) S R
0 0 0 X
0 1 1 0
1 0 0 1
1 1 X 0
JK flip-flop
Q(t) Q(t+1) J K
0 0 0 X
0 1 1 X
1 0 X 1
1 1 X 0
D flip-flop
Q(t) Q(t+1) D
0 0 0
0 1 1
1 0 0
1 1 1
T flip-flop
Q(t) Q(t+1) T
0 0 0
0 1 1
1 0 1
1 1 0
59. Design a BCD counter with JK flip-flops
60. Design a counter with the following binary sequence 0, 1, 9, 3, 2, 8, 4 and repeat. Use T flip-flops.
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Retailing Software
Grow your business with the help of Retailing software
Business consultancy services
Business consultancy service providers are expert at marketing and branding. they help you to grow your business.
A car rental or car hire agency is a company that rents automobiles for short periods of time for a fee. It is often organized with numerous local branches, and primarily located near airports or busy city areas and often complemented by a website allowing online reservations.
Retailing Software
Retail software is computer software typically installed on PC-type computers or more recently delivered via the Internet. Traditionally this software was delivered via physical data storage media sold to end consumer but very few companies still provide their software using physical media.
Business consultancy services
A business consultant is a professional who provides professional or expert advice in a particular area such as security, management, accountancy, law, human resources, marketing, finance, engineering, science, digital transformation or any of many other specialized fields
SaaS Operations (also known as SaaSOps) refers to the operational processes relating to how Software as a Service (SaaS) is discovered, purchased, managed and cancelled in a business. ... Ultimately SaaSOps SaaSOps includes all the processes and systems companies need to enable teams to be successful users of SaaS.
There is some overlap between facility management and property management; the main difference comes from the purpose of managing the building as well as the tenants. While the goal of facility management is more focused on the productivity of tenants and maintenance of the building, property management is more about managing the property for the sake of residents and tenants and ultimately increasing the value of a property.
Textile software takes care of all the manufacturing ranging from planning weave patterns, structure, clothing material, and other related tasks. As trading is another vital aspect of the textile industry, textile industry software also manages Product Life cycle Management and Enterprise Resource Planning.
Construction management Software
Construction management software is a project management platform that helps companies in processes like budget management, communication, decision-making, and job scheduling, to name a few.
Digital workplace software
A digital workplace is the basic set of digital tools employees use to get work done. It can be anything from instant messaging to virtual meeting tools, enterprise social media tools, and even automated workflows.
GST Software
GST Software would enable the taxpayers, accounting professionals and business owners to create GST ready invoices effortlessly, file GST returns, generate GST reports and manage their accounting data seamlessly.
POS Billing Software
PosTabz is a simple and effective POS billing software solution for Textiles, Jewellery, Super Markets or any retail store and different small and mid-sized Business. Our POS billing software could be hosted in your local outlet or on a cloud which helps in providing real-time data of sales & inventory. PosTabz is loaded with features like touch screen POS billing solution, barcode management, gift cards, expiry management, purchase management, rack & inventory management, e-commerce API integrations and much more.
This software may or may not make optimization decisions, but it is useful in coordinating tasks. Most shift planning software has mobile support, which eliminated inefficient scheduling steps and increases scheduling productivity.
IT Asset Management Software
IT Asset management software is a suite that guides the way businesses use their technology resources, secure their data, enforce the best technology practices, and generally improve the quality of the service they offer.
There are a lot of options out there, but the most efficient ones are few and far between.
Scheduling Software
Scheduling software may refer to: Appointment scheduling software, software that allows businesses and professionals to manage appointments and bookings. Employee scheduling software, software that automates the process of creating and maintaining schedules for multiple employees.
Online accounting Software
online accounting software or web-based accounting software – is accounting software that is hosted on a remote server. Users send data to “the cloud” where it is processed and returned to the user.
Customer support Software
Customer service software is a set of tools used to collect, organize, respond to, and report on customer support requests. ... Companies typically use customer service software to enable faster, more efficient customer support delivered by multiple customer service agents working within the same tool.
Material management Software
Material management software is typically imported from the ERP system and used for inventory handling in manufacturing. The key functional components handle identification of material, tracking of consumed material, tracking of produced material, priorization and control of source and destinations for material, material compatibility weighing, picking and packing. The MESMaterial Management Module also provides powerful product genealogy reporting.
ERP software
Enterprise resource planning (ERP) is a process used by companies to manage and integrate the important parts of their businesses. Many ERP software applications are important to companies because they help them implement resource planning by integrating all of the processes needed to run their companies with a single system
School management systems make record-keeping and communication effective and efficient, both in terms of cost and money. School administration software is also, big on saving resources like paper, stationery, and time. The use of the technology of online school management systems enables one to access data through web-connected devices and provides a common platform for the storage of information.
Graphic Design Software
In computer graphics, graphics software refers to a program or collection of programs that enable a person to manipulate images or models visually on a computer.
Computer graphics can be classified into distinct categories: raster graphics and vector graphics, with further 2D and 3D variants.
Photo Editing Software
Photo editing software is used to manipulate or enhance digital images.
This category of software ranges from basic apps, which are able to apply simple effects, to industry-standard programs used by professional photographers for more advanced needs.
In 3D computer graphics, 3D modeling is the process of developing a mathematical representation of any surface of an object (inanimate or living) in three dimensions via specialized software. The product is called a 3D model.
Someone who works with 3D models may be referred to as a 3D artist or a 3D modeler.
Mobile App Development Services
Getting the best Mobile App Development Services for your business is now fast and easy! On our site. Through our site we have helped thousands of companies to find a perfect Mobile App Development Services by comparing product and service ratings, features, pricing and more.
CAD software
Many textile and fashion designers now use CAD/CAM software. The designer might begin by hand-drawing a few sketches of their garment. Then, they scan the images into a computer and begin using CAD. This software is used to modify design drafts and make changes to the garment.
Fashion design software
Audit management software helps companies streamline their audit processes and comply with regulations or internal policies. This type of software is used to define, implement, and monitor auditing procedures for multiple purposes, such as quality management, health, and safety, or environmental protection.
Audit management software
Transport management software is a type of software that helps companies with transportation operations and is mainly used to increase performance, and profit with logistics. ... TMS serves as a logistics management tool in a collaborative network of shippers, carriers, vendors, and customers.
Transport management software
Fleet management software (FMS) is computer software that enables people to accomplish a series of specific tasks in the management of any or all aspects relating to a fleet of vehicles operated by a company, government, or other organisation.
Fleet management software
Logistics industry software
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Operations management software
A financial management system is the methodology and software that an organization uses to oversee and govern its income, expenses, and assets with the objectives of maximizing profits and ensuring sustainability. ... Coordinating income statements, expense statements, and balance sheets. Balancing multiple bank accounts.
Finance management software
Wholesale distributors purchase directly from manufacturers in bulk and at low prices, then they distribute those products to the next link in the chain, usually a retailer. The retailer sells directly to customers.
Wholesale distribution software
Supplier relationship management software is used to facilitate and enhance business relationships between companies and their suppliers. ... When provided separately, supplier relationship management software needs to integrate with purchasing software, supply chain planning software, and supply chain visibility software.
Vendors management software
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Digital Adoption Platform Software
A digital adoption platform (DAP) is a software layer integrated on top of another software application or website to guide users through tasks and functions. ... These tools are also commonly used to train new employees on software used in-house.
Enterprise Social Networking is a platform in which your workplace communicates. This incorporates team messaging, project management, collaboration tools, and more. The world is getting social, and your business is too.
Lead management is a systematic process in which incoming leads are qualified, analyzed, and nurtured so that they can be converted into new business opportunities.
In a typical sales process, leads from multiple channels enter your lead management system, and the sales-ready leads are converted into deals.
It is a software application designed for streamlining the Human Capital Management process in one database. It is also called as Human Resource Information System (HRIS) or Human Resource Management System (HRMS). The
Learning management systems (LMSs) are platforms designed to help instructors manage educational coursework online. ... LMSs work in concert with other education software, such as student information systems (SIS), to streamline student data management.
The market for human resource consulting services consists of eight main disciplines: Human Capital Strategy, Compensation & Benefits, Organisational Change, HR Function, Talent Management, HR Analytics, Learning & Development and HR Technology.
Legal practice management system is a overalll system that helps law firms to manage day to day activities such as conatcts calendars ,case numbers ,preparation of bill , tracking the cases etc.
Virtual Reality (VR) is the use of computer technology to create a simulated environment. Unlike traditional user interfaces, VR places the user inside an experience. Instead of viewing a screen in front of them, users are immersed and able to interact with 3D worlds.
A hotel management Software is a set of hotel software solutions that keep operations flowing. There are accounting packages, customer relationship management (CRM) packages, and a dizzying array of industry-specific software.
IT project management software boosts efficiency by giving users the features they need to monitor and track progress and performance. This keeps their IT projects on track to meet tight schedules and budgets.
This will give you more time to work on tasks that will bring money into your legal practice.
Legal Case Management Software
PCI compliance software can help IT teams address a slew of PCI DSS requirements, including: Protecting systems against botnets, spear phishing attacks, and ransomware. Developing and maintaining secure systems and applications. Tracking and monitoring access to network resources and cardholder data.
Time and attendance software is a type of business application designed to track and optimize the hours that employees spend on the job and keep records of wages and salaries paid. ... The most important features of time and attendance include: Tracking employee hours.
It is a system that allows businesses to manage multiple communication channels such as phone, email, live chat, instant messaging, SMS text, and social media. It can be used as a part of a customer support or help desk software with a ticketing feature to help agents respond to customer queries and resolve issues.
Payroll software automates the process of paying salaried, hourly and contingent employees. Vendors of human resources technology and specialized payroll companies often sell payroll software as a stand-alone system.
Comarch Loan Origination system is a comprehensive tool that will run all stages of lending process starting from data collection up to fund disbursement – with all steps in between automated. It is designed to fit the market need for digital and automated lending experience.
Toptal is a marketplace for top Objective-C developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal Objective-C freelancers for their mission-critical software projects.
Wearable Technology has opened up a new space in the mobile industry. Devices such as Apple Watch, Android wear, Google Glass, Smart Watch, and healthcare wearables have taken the market by storm and their popularity is only growing with time.
With this innovation, businesses need to adapt and understand the changing needs and expectations of the consumers to stay ahead of the competition and market trends. No wonder, wearable apps are gaining extensive popularity today and wearable app development services are in high demand.
ecommerce app development companies
Ecommerce development companies keep various points into consideration to deliver the best ecommerce web or app to suit your business requirements. They are the experts backed by years of experience & expertise in this field to deliver such complex project flawlessly
Smart contract development companes is a set of computer code that runs on the blockchain network. They have gained attention due to their ability to enforce and execute an agreement automatically between untrusted parties without the involvement of intermediaries.
A educaption application, also referred to as a mobile app or simply an app, is a computer program Mobile application dezvelopment requires the use of specialized integrated ... Data theft is not just the loss of confidential information, but makes companies vulnerable to attack
Finance and Accounting Outsourcing (FAO) is: 'The outsourcing of one or more finance and accounting activities or processes. ... The real value to be gained is that the retained finance function can focus on working more closely with the business to provide business partnering and help improve decision making.
Qoppa Software's high quality software can help you deliver PDF printing and manipulation capability with your printing and publishing solutions. Printing and Preflighting of PDF documents can be performed: by a user with our desktop tool PDF Studio.
Professional services automation (PSA) software helps companies in professional services manage most or all back-office and front-office activities. PSA systems are used to track operations and related costs, as well as the revenues they generate. These products are used by consultants, lawyers, marketing account managers, and other professional services industry roles that conduct business on a client-project level. PSA software delivers insight into the business processes of project and portfolio management to improve efficiency, productivity, and profitability of the project operations in place. This type of software can be used by all departments of a professional services company, from sales and marketing to accounting, as well as project managers.
A digital workspace is an integrated technology framework designed to deliver and manage app, data, and desktop delivery. It allows employees to access their apps and data real-time – on any device, from any location regardless of whether the information is stored through cloud services or in the data center.
As a GST registered dealer, you are required to provide GST Invoices, also known as bills to your clients. An invoice or a bill is a list of goods sent or services provided, along with the amount due for payment. You can create GST compliant invoices FREE of cost using ClearTax Billing Software.
Accounting solutions track the financial transactions within an organization. Online accounting systems are specifically designed to be used through the Internet, rather than being installed locally onto company computers. This reduces information technology requirements like server hardware, backups and maintenance and shifts the expenditure from being a large up-front capital cost to a much smaller, but ongoing, monthly or annual feer
Our expert analysts ranked the top eCommerce development companies that build fully functional online stores that engage and convert visitors. Filter listings by location, reviews, budget and team size to select a partner and leverage their technical skills.
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This software may or may not make optimization decisions, but it is useful in coordinating tasks. Most shift planning software has mobile support, which eliminated inefficient scheduling steps and increases scheduling productivity. Online employee scheduling software also includes applicant tracking and onboarding, automatic limits on overtime, time and attendance, and other forms of functionality.
Appnovation designs, develops and delivers mobile apps across all the major platforms, including iOS (iPhone & iPad), Android, BlackBerry and Windows Mobile. Our mobile app development services include: Business, needs and requirements analysis. User Experience (UX) testing.
Mobile app development is the act or process by which mobile App is developed for mobile devices, These applications can be pre-installed on phones during manufacturing platforms, or delivered as web applications using server-side or client-side processing (e.g., JavaScript) to provide an "application-like" experience within a web browser.
A digital adoption platform (DAP) is a software layer integrated on top of another software application or website to guide users through tasks and functions. These tools are also commonly used to train new employees on software used in-house.
A digital adoption platform (DAP) is a software layer integrated on top of another software application or website to guide users through tasks and functions. Some DAP offerings are made specifically for other popular software applications, with companies making multiple DAPs tailored for certain products.
SaaS management is the business practice of proactively monitoring and managing the purchasing, onboarding, licensing, renewals, and offboarding of all the software-as-a-service (SaaS) applications within a company’s technology portfolio.
Developed in response to the unique attributes of SaaS applications in a business environment, SaaS management is quickly developing into a specialized practice for IT, Procurement, and business leaders.
A Loan Origination System (LOS) is a set of software built to support the processing and application process during a mortgage life cycle. It allows lenders & loan officers to easily submit and retrieve data, loan processors to process and index information easily and meets the needs of financial institutions that pull reports and validate personal information.
It essentially connects the dots digital of many manual process that used to be very time consuming. Saving time for all of the many parties involved in the mortgage process.
CRM stands for Customer Relationship Management. It's a technology used to manage interactions with customers and potential customers. A CRM system helps organisations build customer relationships and streamline processes so they can increase sales, improve customer service, and increase profitability.
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GST Billing Software
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As a GST registered dealer, you are required to provide GST Invoices, also known as bills to your clients. An invoice or a bill is a list of goods sent or services provided, along with the amount due for payment. You can create GST compliant invoices FREE of cost using ClearTax Billing Software.
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parks and recreation software
Parks and rec software integrates all your complex and demanding community activity management functions into a user-friendly program. The software programs are made up of comprehensive modules equipped with a wide variety of features to cover any and every recreational need.
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digital workplace software
A digital workplace is a cloud based work platform that lets businesses move work to the virtual space. Such platforms contain all the applications, data, tools and collaboration features employees need to perform work
https://www.infobrez.com/digital-workplace-software
digital workplace software
A digital workplace is a cloud based work platform that lets businesses move work to the virtual space. Such platforms contain all the applications, data, tools and collaboration features employees need to perform work
https://www.infobrez.com/digital-workplace-software
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Construction management is a professional service that provides a project's owner(s) with effective management of the project's schedule, cost, quality, safety, scope, and function. Construction management is compatible with all project delivery methods.
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Accounting software describes a type of application software that records and processes accounting transactions within functional modules such as accounts payable, accounts receivable, journal, general ledger, payroll, and trial balance. It functions as an accounting information system.
Email management is a specific field of communications management for managing high volumes of inbound electronic mail received by organizations. ... Customer service call centers currently employ email response management agents along with telephone support agents, and typically use software solutions to manage emails.
The success of a hospital Management system lies mainly on user-friendliness. Then only the implementation and training becomes seamless and the users in all departments of a hospital can relate their day to day work with the software.
Such a user friendly software can be delivered by a team consists of health care professionals, a company in healthcare domain, has close connection with every type of staff in a hospital so that they can understand their ability.
The overall advantages of the HMS are: Erroneous is greatly reduced, Customer (Patient) satisfaction increases and thus foot fall increases, Ecofriendly green system implemented by reports/ results / information are moved digitally than in a paper, dashboards help the hospital management to a greater extent.
An event management system is typically made up of client agents that reside in the remote devices, a central component for gathering the events, an event database and a reporting system to deliver the results in various formats. See service level management system and application management system.
Generally, software applications that have 2D or 3D technology integrated into them are used in the dyeing, printing, and finishing industry. Computer Aided Application (CAD), Computer Aided Manufacturing (CAM), and Computer Integrated Manufacturing (CIM) are the three main software applications used.
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A growth consultant is a professional focused on generating sustainable growth for clients. ... As a sales growth consultant, I am a professional architect of growth initiatives for companies to achieve more and do better. In other words, I help companies reach their full growth potential.
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