Computer Systems

describe and exemplify the use of binary to represent positive and negative integers using two's complement, including converting two's complement from binary to decimal and vice-versa. 

describe and exemplify floating-point representation of positive and negative real numbers, using the terms mantissa and exponent. 

describe Unicode, and the advantages over extended ASCIS for storing characters.

describe the advantages and disadvantages of bit-mapped and vector graphics. 

describe the concept of the fetch-execute cycle. 

describe the factors affecting the performance of a computer system.