You need to reformat your computer after hacking your data up and preparing the hard drive you need to install the first software program called an operating system. what does an operating system do?

An operating system manages all your software and hardware resources. This includes your processors, hard-drives and all your output/input devices. The operating system carries all the task you have given to your computer. Your operating system is like your parent, managing all your things so you get the best outcome. 

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability