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Introduction to Logic Circuits and Functions :-
Logic gates are the basic building block of digital electronics. A gate is an electronic device which is used to compute a function on a two valued signal.
Combinational circuits are defined as the time independent circuits which do not depends upon previous inputs to generate any output are termed as combinational circuits.
Sequential circuits are that which are dependent on clock cycles and depends on present as well as past inputs to generate any output.
A multiplexer is a circuit that accepts many input but give only one output.
A demultiplexer function exactly in the reverse of a multiplexer, that is a demultiplexer accepts only one input and gives many outputs. Generally multiplexer and demultiplexer are used together, because of the
communication systems are bi directional.
Objectives of Logic Circuits and Functions :-
In this chapter you will learn about:
- Â Machine instructions and program execution
- Â Addressing methods for accessing register and memory operands
- Â Assembly language for representing machine instructions, data,
and programs - Â Stacks and subroutines
List of References :-
- Carl Hamacher et al., Computer Organization and Embedded
Systems, 6 ed., McGraw-Hill 2012 - Â Patterson and Hennessy, Computer Organization and Design,
Morgan Kaufmann, ARM Edition, 2011 - R P Jain, Modern Digital Electronics, Tata McGraw Hill Education
Pvt. Ltd. , 4th Edition, 2010