EECS 1520 Lecture 2: Lec #2

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: Andranik Mirzaian

Document Summary

Analog: things that change continuously: in nature its mostly analogue ( the way you speak is analog, computers cannot store analog manner has to be digital. Digital: things that change in discrete manner: like integers change in a discrete manner. Analog data is in the thermometer: the markings are digitized version, however the thermometer as a whole. Digital data shown as discrete info: time: it changes every min (the min being a discrete, it would be analog if time shown in clock. When you move from analog to digital we lose some info: less signi cant info dismissed/ truncated. Why do we have to do this: bc computers are nite (they have a certain memory and no more) Integers vs real numbers: there are in nite amount of integers, and are countable (numberal) Friday, january 13, 2017: however real numbers are in nite but they are uncountable.