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

2. 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, …

3. Why study digital logic?
Less sensitive to noise than analog signals
DIGITAL SIGNAL
RANDOM NOISE +
____________________________________________________________
DIGITAL SIGNAL + RANDOM NOISE

4. In Comparison to Analog…
ANALOG SIGNAL
ANALOG SIGNAL + RANDOM NOISE

5. 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