When working at a computer, it is impossible not to encounter files - elements of operating systems, which are separate applications or sets of binary information for launching them. You should understand this concept.
A computer file (from the English file - archive, dossier) is an ordered collection of data that is stored on disk and occupies a separate area of external memory. Computer files can be viewed as a modern counterpart to paper documents that are traditionally found in office and library folders (hence the term). On most modern operating systems, files are organized as one-dimensional information arrays. They initially contain metadata that allows you to get some basic information about an object and determine one or another of its types. Files can be of various sizes and contain a certain amount of information, which is usually expressed in bytes (information units). Information in a computer file can contain smaller packets of data, often called "records" or "lines". A text file, for example, can contain lines of text that correspond to lines written or printed on a sheet of paper. A system file can contain arbitrary binary images or machine instructions to perform a particular operation. A file system is a collection of files and information that describes the specific characteristics of each of them. The purpose of a file system is to organize files for easier discovery. There are different file systems, they differ in the way they store files and additional capabilities. These characteristics can include type, access rights, size, date of last modification, etc. Files on your computer can be created, moved from one place to another, modified at your discretion, renamed, supplemented and erased (deleted). Usually, computer programs are responsible for these operations, each of which understands a separate type of files (music, text, system and others).
