Question $1(50$ Marks$)$

A$.$ A farmer has just purchased a big portion of land for commercial purposes. He plans to fully automate all the farming processes as this will ensure he has a maximum yield of his production. This automation requires him to have adequate systems in place. These systems will be running a lot of processes that are core to his business. The main identifiable processes include capturing of regular weather data $($temperature$,$ amount of rain fall, wind$),$ precise location data, images $($these images will be large and sometimes very large$),$ workers register$($attendance$),$ monthly salary data $($pay slips$)$ and daily, weekly, monthly report. You are required to advice the farmer's IT $($information Technology$)$ unit manager on the best possible operating systems capability required for this complex system.

$20$ Marks

B$.$ An air aviation company has various departments and sub$-$divisions. Their systems run on multiple types of operating systems. There has been a breach that affected their network, after analysis, they discovered two significant departments are down. One process deals with traffic control and signal analysis of airplanes, while the second process deals with payroll system for the entire company. These two processes use different types of operating systems. How would your knowledge of operating system types belp you to prioritize which department to bring up first? Explain your answer in detail.

C$.$ List $10$ operating system types

$20$ Marks

$10$ Marks

Question $2(34$ Marks$)$

A$.$ The concept of context$-$switch enables the operating systems to move from one process to the other and back. Describe four $(4)$ actions that can be taken by the kernel to achieve this concept

$12$ Marks.

B$.$ Computer architecture refers to the structure of internal components of the computer system. Using the computer architecture, explain how the operating system manages and performs the booting sequence from cold start till printing a word document from an email download.

$10$ Marks

C$.$ A process is a program in execution and during these executions, processes can move from between various stages. Assuming there are two processes $($Process A and Process B$)$ and these processes are in a ready queue. How would you describe the activities that happened whereby, Process A started first but process B completed first.

$12$ Marks

Question $3$

A$.$ List any parts of the PCB $6$ Marks

B$.$ List and describe $5$ process states $10$ Marks