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small topic of digital electronics

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- 1. Difference between combinational and sequential circuit and their concepts related to real time<br />Damodar panigrahy<br /> ETC<br />
- 2. contents<br /> Combinationational circuit<br /> examples of real type related to concept of combinational circuit<br /> Circuit examples of combinational circuit<br />Sequential circuit<br /> examples of real type related to concept of <br /> Sequential circuit<br /> Circuit examples of Sequential circuit<br /> difference between combinational circuit and sequential circuit<br />
- 3. Combinationational circuit<br /> The circuit whose output at any instant depends only on the input present at that instant only is known as<br /> Combinationational circuit<br /> this type of circuit has no memory unit<br /> Combinationational circuit only depend up on the present input<br />
- 4. examples of real type related to concept of combinational circuit<br /> Generally engineering students prefer night preparation for exam.<br />It is only for exam after that they forget all the things.<br />Means they do not want to remember .<br />So no memory is required for remember all the things.<br />This concept is same as combinational circuit.<br />
- 5. Circuit examples of combinational circuit<br />half adder : used for add 2 bits.<br />full adder : Used for add 3 bits.<br />magnitude comparator: used for compare 2 binary data (< or > or =).<br />multiplexer : It has n select line,2^n inputs and 1 output.<br />demultiplexer : It has n select line,2^n outputs and 1 input.<br />
- 6. Sequential circuit<br />The circuit whose output at any instant depends not only on the input present but also on the past output a is known as sequential circuit<br /> this type of circuit has memory unit for store past output<br />Sequential circuit depend up on the present input as well as past output.<br />
- 7. examples of real type related to concept of Sequential circuit<br /> Some students prepare or study whole semester for their exam.<br />So they have to remember all the things .<br />so they require memory .<br />This concept is same as sequential circuit.<br />
- 8. Circuit examples of Sequential circuit<br />Flip flop: It used for store one bit information.<br />Register: It is of 2 types.<br /> buffer register: used for store information.<br /> Shift register: used for store and shift the information.<br />Counter : Used for count the number of clock pulses .<br />
- 9. difference between combinational circuit and sequential circuit<br />combinational circuit sequential circuit<br />1. 1.<br />The circuit whose output at any instant depends only on the input present at that instant only is known as combinationational circuit.<br />2.<br />This type of circuit has no memory unit .<br />3.<br />Examples of combinational circuits are half adder, full adder, magnitude comparator, multiplexer, demultiplexere.t.c.<br />The circuit whose output at any instant depends not only on the input present but also on the past output a is known as sequentalcircuit<br />2.<br />This type of circuit has memory unit for store past output<br />3.<br />Examples of sequential circuits are<br />Flip flop, register, counter e.t.c.<br />
- 10. Thank you<br />

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