CLI (command line interface), a text-only link between a computer and its operator, Compression, a method of packing data in order to save disk storage space or download time, Customizable, able to be changed or adjusted to fit a user’s personal needs or preferences, Device driver, software which converts the data from a component or peripheral into data that an operating system can use, Efficient manner, a way of doing something that saves time, energy, or resources, File permissions, дозволи файлів, Foundational, основоположний, GUI (graphical user interface), an icon-based link between a computer and an operator, Hidden file, a file which does not appear by default in a directory listing, normally for security reasons or to prevent confusion in end users, HCI (Human-Computer Interaction), how people and computers work together, especially through screens, keyboards, and other controls, Kernel, the fundamental part of an operating system responsible for resource management and file access, Linux, an open source version of Unix developed by Linus Torvalds, Sign in, to enter information related to an account name and its password in order to access a computer resource.

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