An operating system (OS) is the main software that manages a computer’s hardware and software, allowing users to interact with the system. Examples of OS for computers include Windows, Mac OS, and Linux, while mobile devices commonly use Android and iOS.
Storage devices are used to save various forms of data, such as documents, images, and programs. These devices are classified into three types:
- Magnetic Media Devices (e.g., hard disks and floppy disks)
- Optical Media Devices (e.g., CDs, DVDs, and Blue-ray discs)
- Solid-State Devices (e.g., pen drives and SSDs)
In computers, files store data and are organized in folders. Folders help group related files, making it easier to manage information. Common file operations include creating, saving, copying, moving, and deleting files and folders. Files that are deleted from external storage devices are permanently removed, while those deleted from internal drives can be restored from the Recycle Bin.
File characteristics like size, type, and date modified can be viewed using the Properties option in the file menu. Understanding how to organize and manage files helps improve efficiency and avoid data loss.
