Question

1. Information representation-
while dealing with binary numbers, many IT professionals favour to use hexadecimal rather than decimal notations. They claim that it is easier to convert from binary to hexadecimal than to decimal. Do you have the same opinion with this claim? If so, give details why. If not, explain why not. Be specific. Give details and justify your answer.

2. Computer architecture
writes down a Little Man Computer program that accepts two numbers as input and prints the smaller of two numbers. Please comment each line of your code so that it becomes clear what it does.

3. operating system
what is context switching in operating system expressions? Be verbose. Describe and justify your answer. When one saves the PCB from previous thread of execution and loads new PCB into memory from the new thread of execution

4. Input or output and operating system
in many systems, some interrupts are maskable. Why is it essential to mask an interrupt? Give details and justify your answer.

5. Input/output
a published page contains 50 lines. Each line contains hundred characters. Each character is represented by an 8 bit ASCII. How numerous published pages are capable of fit into 100 MB flash memory?