INTRODUCTION TO LOGIC CIRCUITS AND DEVICES

1.

The terms "logic" and "logically" probably cause you to think of common sense, expected

results, and rational decisions. These definitions or synonyms are the same ones connected with the

word logic when the term is used in electronics. The term "logic" in electronics describes operations

and symbols of operations that follow a predetermined set of rules.

2.

Transistorized circuitry and integrated circuits (IC) are being used more and more in new

equipment. Many of these circuits, especially those that function in a binary manner, are standardized.

They belong to specific classes of circuits depending on their function. As a result, symbolic logic is

now used not only with computers but also with data processing equipment, communications equipment

- in almost every area in the electronic field.

3.

To more easily understand the logic diagrams of existing equipment, you must have a thorough

knowledge of binary logic. You should recognize the symbols when they are used, know the meaning

of each symbol, and know the rules governing their functions.

4.

This subcourse has the information you need to learn and apply the principles of symbolic logic

to military equipment. It is based on military standards of symbolic logic. Of course, once you have

learned the rules of binary logic thoroughly, any symbol variations you encounter in nonmilitary or older

nonstandard logic will be very easy to understand. You will only have to recognize new symbols - the

function of the circuits they represent and the binary rules they follow will remain the same.

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