1. What are the main differences between analog and digital signals 2. What are the common points between analog and digital system 3. Convert following decimal numbers to binary, octa decimal I and hexadecimal nmbers a. 128.62 b. 935.04 4. Convert following binary numbers to decimal, octal and hexadecimal numbers a. 1101.01 b. 11000101.1001 5. Convert following hexadecimal numbers to decimal, binary and octal numbers a. 1101 01