EECS 1520 Lecture Notes - Lecture 11: Process Control Block, Bit Rate, Key Frame

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

Document Summary

Digital is non cont data, discrete rep. Computers are finite and deterministic - can only operate on a fixed amount of data and time, amount and type of data must be known ahead of time. Computers cannot work well with analog information, discretize the data and digitize values of quantities. Using binary is reliable and cost effective. Analog signals fluctuate in voltage up and down 1 high 0 low. Electronic signals degrade as time goes on due to environmental effects - digital can be repaired. Convert from base 10 to any other just divide by that number like the hex thing you know. When negative flip all the numbers nah mean. Number overflow is result of trying to rep infinite range in a finite one. Sign if 1 negative if 0 positive. _xx rep number moved either left or right. First 32 are control characters or hidden characters, do not appear as text.