Introduction
An operating system is defined as a computer software component that coordinates and manages the resources or activities of the computer. There are two types of operating systems; system and application system. They are used in handling hardware and matching them with different programs that run in the computer making the computer to function. A trusted operating system must be very flexible in terms of security, scalability and performance in order to manage a larger workload in a specified time frame (Abiodun, 2011). However, the operating system security is balanced with performance in order to avoid interferences that can easily arise when ...