EECS 1520 Chapter Notes - Chapter 3: Mercury-In-Glass Thermometer, Digital Clock, Alternate Character

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: Avi Cohen

Document Summary

Computers are multimedia devices, dealing with many categories of information. Numbers, text, audio, images and graphics, video. The goal of data representation is to represent enough of the data to satisfy our computational needs and our senses of sight and sound. Bandwidth: the number of bits or bytes that can be transmitted from one place to another in a fixed amount of time. Analog data: continuous representation, analogous to the actual information it represents we experience the world in analog data. Second hand of a clock constantly moving, mercury thermometer continuous fluctuation. Digital data: a discrete representation, breaking the information up into separate elements. Digital clock showing discrete time, digital thermometer. We digitize information as computers cannot work well with analog represent those pieces separately. Design and the machine much more simpler only deal with 2 values: on or off. An analog signal continually fluctuates up and down in voltage.