Digital Electronics

Explain Digital Electronics. From where this word arise and what are their topics and terminology?

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Digital electronics is a branch of electronics and electrical engineering in which any analog signal is treated as two states either ‘0’(false) or “1’(true). In our daily life all signals are analog in nature such as our voice, any electrical signal. These analog signal is further converted in digital form.

Digital word arise from digit means in this technique we deal with digit which are 0 and 1.

This word(digital) is very familiar now a days. We hear many word related to this such as digital TV, digital camera, digital watch, digital sound ,digital pictures etc. so it’s become very interesting to know about digital electronics. Our computer is also a digital machine.

As we have stated that in digital electronics we have only two states or number 0 and 1. so in digital systems the data will be binary states (bi means two).

A question arise in our mind that why we convert any analog signal in to digital one. Because of many advantages over analog such as noise immunity, easy transmission, easy handling, better quality etc.

To study about digital electronics there is need to study about binary system(which has only two values 0 and 1). For this purpose mathematician George Boole proposed a new kind of algebra named as Boolean algebra in 1854.

Digital electronics covers many topics and terminology:

•    NUMBER SYSTEMS AND CODES
•    BOOLEAN ALGEBRA
•    MINIMIZATION TECHNIQUES
•    LOGIC GATES
•    LOGIC FAMILIES
•    ARITHMATIC CIRCUITS
•    COMBINATIONAL CIRCUITS
•    SEQUENTIAL CIRCUITS
•    FLIP-FLOPS
•    COUNTERS
•    REGISTERS
•    ANALOG TO DIGITAL CONVERTER
•    DIGITAL TO ANALOG CONVERTER
•    CLOCK GENERATOR
•    APPLICATION OF DIGITAL CIRCUITS

These all basic topics are covered to design  a digital logic system. digital circuits have many application as frequency counter, time meter, bar graph display system, multiplexed display system, dot matrix display system, digital voltmeter, digital multimeter etc.

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