DIGITAL ELECTRONICS
\dˈɪd͡ʒɪtə͡l ˌɛlɪktɹˈɒnɪks], \dˈɪdʒɪtəl ˌɛlɪktɹˈɒnɪks], \d_ˈɪ_dʒ_ɪ_t_əl ˌɛ_l_ɪ_k_t_ɹ_ˈɒ_n_ɪ_k_s]\
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The implementation of two-valued logic usingelectronic logic gates such as and gates, or gates andflip-flops. In such circuits the logical values true andfalse are represented by two different voltages, e.g. 0V forfalse and +5V for true. Similarly, numbers are normallyrepresented in binary using two different voltages torepresented zero and one.Digital electronics contrasts with analogue electronicswhich represents continuously varying quantities like soundpressure using continuously varying voltages.Digital electronics is the foundation of modern computers anddigital communications. Massively complex digital logiccircuits with millions of gates can now be built onto a singleintegrated circuit such as a microprocessor and thesecircuits can perform millions of operations per second.
By Denis Howe
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.