COSC 109 Lecture Notes - Cosc
31 Jan 2014
School
Department
Course
Professor
Document Summary
Cosc 109 chapter 1 9/3/13: analog data is continuous, there are in between numbers. Time or temperatures have decimals: digital/discrete data is limited, specific. 2^4=16, therefore you need 4 bits to get 16 messages: 1 byte = 8 bits, therefore 2 bytes = 16 bits, kilo= 2^10, mega= 2^20, giga = 2^30. 2 kilobytes= 2 x 2^10 x 8 since there are 8 bits in 1 byte. How to convert binary to decimal: ( follow the bold letters for guidance: divide by 2. 19/2 = 9 1 (19/2= 9 with one left over) 9/2 = 4 1 (9/2= 4 with one left over) 4/2 = 2 0 (4/2= 2 with zero left over) 2/2 = 1 0 (2/2= 1 with zero left over) 1/2 = 0 1 (1/2= 0 with one left over: take all remainders and start from the bottom.
