Floating Point Representation in Memory

1. Describe the various ways of floating point representation in memory. What is the importance of normalizing the mantissa in this representation? Explain it by example(s)?

2. a) Define a structure to store roll no, name and marks of a student.

b) Using the structure of Q2. a), above write a 'C' program to create a file "student.dat". There must be one record for every student in the file. Accept the data from the user.

c) Using the "student.dat" of Q2. b), above write a 'C' program to search for the details of the student whose name is entered by the user.

 3. How is communication between computers established in Internet. What characteristics need to be defined in a communication protocol? Explain the physical and logical paths in a computer communication network also.