Studying digital logic

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Presentation transcript:

Studying digital logic ECE 2140 Spring 2012 GTA: Scott Trocchia Presented on 1/25/12

Digital Logic Base terminology: State – condition of “something” at a particular time A human being, a machine, … Binary – a two-valued number system ‘0’ / ‘1’ ‘low’/ ‘high’ ‘false’ / ‘true’ ‘0 Volts’ / ‘5 Volts’ Compare it to decimal, which has values 0, 1, 2, 3, …

Why study digital logic? Less sensitive to noise than analog signals DIGITAL SIGNAL RANDOM NOISE + ____________________________________________________________ DIGITAL SIGNAL + RANDOM NOISE http://www.softwareforeducation.com/wikileki/index.php?title=Regenerator

In Comparison to Analog… ANALOG SIGNAL ANALOG SIGNAL + RANDOM NOISE http://cnx.org/content/m13859/latest/

Why study digital logic? (cont’d.) Easier to send, receive, and recover signals Can send more data error-free Forms the basic building blocks for computers http://www.zdnet.co.uk/i/z5/rv/2008/11/cor_ei7_1.jpg