CS100 Chapter Notes - Chapter 6: Mercury-In-Glass Thermometer, Octal, Electric Light
7 Dec 2016
School
Department
Course
Professor
Document Summary
Specific values that a thermometer displays, not continuous. Anything that can be counted is digital/discrete info of the temperature, not limited) light, time, sound waves, length, temperature. Why do we digitize/discretize: to reduce information for convenience, represent it on computer, computers discretize because cannot have infinite precision) Two lightbulb scenario (on and off) = 4 posibilities. Computers have billion of switches that can be on (1) or off(0) Byte: there are 8 bits in a byte. Decimal number system (based on 10 b/c 10 fingers) How do computers count with 1 and 0: binary. Binary is base 2 because there are 2 options. First column is 0, so 2^0 and mutliply it by 1. If its 0 you multiply it by 0 (so ignore) Look for biggest power of 2 that can fit into the number 207. 0 through 9, a, b, c, d, e, f.
