01:198:111 Lecture Notes - Lecture 4: Java Virtual Machine

• School: Rutgers University
• Department: Computer Science
• Course: 01:198:111
• Professor: A Centeno

Document Summary

Above is diminished by half by the presence of -ve integers. The bit that is taken out is called the sign bit. For decimals, we need to use negative powers of 2. Thus, we need to eventually round off the numbers. 1101 multiples by 2(base10) = 1101 (11) * 10 (2) = 11010 (22) This can be accomplished purely mechanically by adding a 0 at the end. Dividing by 2 knocks of the first bit, in which case the base10 digit is rounded down. Next few bits can be address of data in memory. Next few bits can be the location of the data that needs to be operated. In order to make bit maps, we would need to know what type of data the bits would be holding. It is important how the sequence of 1s and 0s is interpreted. We can combine transistors to create logic gates. We can combine logic gates to make higher operations.