ITF+ Certification Cram Notes

The interface between applications and hardware is the operating system. An operating system is a software that manages computer hardware and provides services for applications to run. The operating system acts as an intermediary between the applications and the hardware, providing a layer of abstraction that allows applications to interact with the hardware without needing to know the details of the hardware. The operating system provides a set of system calls that allow applications to request services from the operating system, such as reading or writing to a file or accessing the network.

Disk management

Disk management is the process of managing the storage devices on a computer system, such as hard drives or solid-state drives. Disk management involves tasks such as partitioning the disk, formatting the disk, and assigning drive letters to the partitions. Partitioning involves dividing the disk into separate sections, each with its own file system. Formatting involves preparing the disk for use by creating the necessary structures for the file system. Drive letters are assigned to the partitions to allow users to access the partitions easily. Disk management also involves tasks such as creating, deleting, and resizing partitions, as well as monitoring disk usage and performance. Disk management is an important part of system administration, and is necessary to ensure that storage devices are used efficiently and effectively.

Process management/scheduling

Process management/scheduling refers to the management and scheduling of tasks and processes that are running on the operating system. An operating system manages multiple processes and assigns them resources such as CPU, memory, and disk time. It schedules these processes in a way that ensures efficient use of system resources and fairness in allocating resources among different processes. The operating system also manages the creation and termination of processes and allows for inter-process communication.

Kill process/end task is a feature of the operating system that allows the user to terminate a process or application that is not responding or has become unresponsive. This feature is typically used when an application or process is not functioning properly or is taking up too much system resources.

Application management

Application management refers to the management of software applications that run on an operating system. This includes tasks such as installation, updates, and uninstallation of applications. The operating system provides an interface for managing applications, which may include a software center or app store. Application management also includes managing dependencies between different applications, ensuring that the correct versions of supporting software libraries are installed, and that there are no conflicts between different applications.