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1. A file manager or file browser is a computer program that provides a user interface to manage files and folders. The most common operations performed on files or groups of files include creating, opening (e.g. viewing, playing, editing or printing), renaming, moving or copying, deleting and searching for files, as well as modifying file attributes, properties and file permissions. Folders and files may be displayed in a hierarchical tree based on their directory structure. Some file managers contain features inspired by web browsers, including forward and back navigational buttons.

   • A user interface, also called a "UI" or simply an "interface," is the means in which a person controls a software application or hardware device. A good user interface provides a "user-friendly" experience, allowing the user to interact with the software or hardware in a natural and intuitive way. Nearly all software programs have a graphical user interface, or GUI. This means the program includes graphical controls, which the user can select using a mouse or keyboard. A typical GUI of a software program includes a menu bar, toolbar, windows, buttons, and other controls. The Macintosh and Windows operating systems have different user interfaces, but they share many of the same elements, such as a desktop, windows, icons, etc. These common elements make it possible for people to use either operating system without having to completely relearn the interface. Similarly, programs like word processors and Web browsers all have rather similar interfaces, providing a consistent user experien

2. File-list file managers are lesser known and older than orthodox file managers. One such file manager is flist, which was first used in 1981 on the Conversational Monitor System.[5][6] This is a variant of fulist, which originated before late 1978, according to comments by its author, Theo Alkema.[7] The flist program provided a list of files in the user's minidisk,[8] and allowed sorting by any file attribute. The file attributes could be passed to scripts or function-key definitions, making it simple to use flist as part of CMS EXEC, EXEC 2 or XEDIT scripts. This program ran only on IBM VM/SP CMS, but was the inspiration for other programs, including filelist[9][10][11] (a script run via the Xedit editor), and programs running on other operating systems, including a program also called flist, which ran on OpenVMS,[12] and fulist (from the name of the corresponding internal IBM program),[13] which runs on Unix.[14]

   • The boot device is the device from which the operating system is loaded. A modern PC BIOS (Basic Input/Output System) supports booting from various devices. These include the local hard disk drive, optical drive, floppy drive, a network interface card, and a USB device. Typically, the BIOS will allow the user to configure a boot order. If the boot order is set to: CD Drive Hard Disk Drive Network

3. ooting is a startup sequence that starts the operating system of a computer when it is turned on. A boot sequence is the initial set of operations that the computer performs when it is switched on. Every computer has a boot sequence. The average computer doesn’t understand the boot sequence but is important to know for customizing and troubleshooting your computer. Boot Loader Computers powered by the central processing unit can only execute code found in the systems memory. Modern operating systems and application program code and data are stored on nonvolatile memories or mass storage devices. When a computer is first powered on, it must initially rely only on the code and data stored in nonvolatile portions of the systems memory. At boot time, the operating system is not really loaded and the computer’s hardware cannot peform many complex systems actions. The program that starts the “chain reaction” which ends with the entire operating system being loaded is known as the boot load

4. Bill Gates admitted the CTRL + ALT + DEL keyboard shortcut was a mistake. It used to open the Task Manager, but was later replaced by a more comprehensive menu. The problem is, looking at raw processes listed in the Task Manager leaves most people confused and just as clueless as before. So they turn to Google and maybe that’s how you found this article.